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Slack is a group messaging or team collaboration app that aims to simplify communication for businesses. Features include open discussions, private groups, and direct messaging, as well as deep contextual search and message archiving, and file sharing. Slack integrates with a number of other tools, such as MailChimp, Dropbox, and Google Drive. The product is free to use, and also has paid plans with more features and greater controls. The company has raised $340M in funding and boasts 800k users.(Probably) The best chat tool for tech companiesOur entire company is on Slack, which is great since we have employees located in different countries. I particularly like the sense of transparency it gives to our organization: We have a lot of different channels for business areas (marketing, engineering, etc) but they're all open for other employees to join and see what's being discussed.,Categorize discussions by channels. Fast, powerful mobile app. Almost all-in-one communication tool (chat and audio/video). Integrations with Google Drive, Trello, etc.,Ability to share my screen on the web version. For big organizations, (probably +150-200 employees) it might add too much noise if not managed correctly.,9,Project management: It helps managers get in-sync with individual employees. Makes onboarding easier for new employees since they get to see what every team is working on. Team announcements are easier to do and react to.,HipChat,10Slack- a great tool and embraced by our group!Our department of IT project development uses Slack for communication between team members. This enables us to work remotely and more efficiently, and also allows us to target communication easily to individuals as well as custom groups. The whole organization has not started using this product at this time. But every member of the IT project development team is actively using this to discuss and share project issues and concerns as well as for department announcements, and various social uses- such as lunch planning, sharing various interests and items on the internet.,Sending notifications when messages are sent to you. Ease of user interface. Ability to add and communicate to people outside of your organization. Ability to share images and documents.,We are happy with all the funcationality in Slack.,8,I believe this has increased productivity amongst the team in that we can get immediate responses to issues and questions, allowing us to have a better continuous flow of work Having an easy to use tool like this speeds up on boarding, as new team members can easily learn. They also will have access to all existing resources within the tool We have been able to customize communication groups to include those appropriate, eliminating unnecessary noise regarding areas not relevant to particular team members.,Skype for Business (formerly Lync),ZenHub, Microsoft Visio, Microsoft Office 2016, WorkfrontSlack: It’s where work happens.Slack is the single workspace that connects you with the people and tools you work with every day. Slack is real-time messaging through calls and chat. It helps us keep everyone on the same page. Slack gives integration of so many apps that make work with other apps also so easy, for example, when you integrate Gmail it with Slack it's easy to receive meeting invites, reminders and important mail directly to you. Also, it has functionality like uploading virtually any file type. You can choose to make it available to multiple users or to only one.,Multichannel creation option means that if you are a part of a single team you can create a channel and invite all the team members to join a channel. Automatic rich snippets: The app creates these immediately when you post a link. Slackbot is also very good feature as they reminds you about your mentioned reminders. Integration with lots of tools and software makes Slack more robust. Bitbucket and Jira Integration as well as Google Drive integration are an example of some of them.,I genuinely don't dislike anything, but sometimes (and for bigger groups), the limitation of messages for the free option is the only downside, but if you're using it a lot, you might want to consider paying for a subscription anyway. We are not able to see the message status to know whether it has been seen or not by the other side. Lack of video chat options that complement the tool better. When you are a member of a lot of channels it becomes messy a bit.,9,You can divide conversation types by channel. You can either have public or private channels/chats. Slack integrations are a must to get the most out of Slack. Having Slack on all of my devices makes my life and communication easier. Project management & event planning have become much more streamlined with other coworkers. Using Slack with my coworkers has cut down immensely on my giant email threads. Everything is in one place, so I never have to go hunting through old emails or notes.,Google Hangouts, Skype and Zoho Chat,9,Google Hangouts, Skype, Zoho ChatSecond go around with Slack not so good, why do we use this thing?Well we are on our second go around with Slack. We implemented it many years ago but it fizzled out. About a year ago we resurrected the product. I just don't know about how it fits in to our enterprise. There are some areas that use it a lot to keep track of say network or SaaS issues which are timely in nature. However there are others who just don't need to use it for much. I would say there is about 20% of our division that uses it actively. Unfortunately, much of the other 80% sees it as an annoyance. Furthermore, some of the 20% that uses it seems to think that they need to communicate what they say on Slack in a duplicate manner via email or vice versa.,It duplicates other services that we already have really well. For example, Yammer, our LMS, and other general communications tools. I like that you can add pictures. It is sort of retro, like ICQ.,Totally annoying and disruptive to getting anything done. Seems to go down the most out of all our cloud services, and we got a bunch of them. The UI is just bad. Not intuitive. Not a good value.,3,All Slack is happens to be another communications tool. There are lots of them out there. This one for some reason has gained traction. It is mostly a waste of time because it duplicates other tools and also duplicates communication. Don't send me the same message via email, slack, CRM, and a web page. Just stupid. We don't speak four different languages at work, face to face, for the hell of it. Why do we do this in the way we communicate digitally? Slack tends to be unavailable or "goes down" quite a bit. Not good for a tool for which folks relay on to get the important news out.,Microsoft Yammer,2,Sakai, Box, AtomSlack is the ideal tool for team collaboration!Slack is very important for communication in our team. It helps us stay on track on most important conversations that happen in our group. We use it to share information and the most important updates in our field of work, also to synchronize activities and tasks. In summary, it is a very useful tool that we use everyday.,Very intuitive and easy to use. Nice user interface with a simple and clean design. Possibility of integration with other apps.,It is not possible to add people to a Direct Message conversation a posteriori. The desktop app could be made more efficient. It is not possible to merge different channels into a single one, could be a useful feature.,9,Very useful and powerful collaboration tool helps for effective team communication. Allows questions to be answered quickly rather than hitting a bottleneck. It allows organizations to thrive in a remote world, saving time and costs.,Skype,9,Authy, GoToMeeting, Skype for Business (formerly Lync)Slack increases work productivityWe use Slack to communicate with team members that work remotely or are in different locations to share ideas on how to achieve our goals or help each other on tasks. We are able to collaborate on projects and finish them on the stipulated time which in return increases work productivity.,It has an intutive user interface which is user- friendly to all users. It is easy to use. It is easy to set up and configure. Highly customizable. It is easy to upload links and send them to other team members.,Too many alerts and I lose control of them. The application may at times crash.,10,Slack has increased work productivity It has enabled us to finish projects in an timely manner It has helped us communicate efficiently,10,10The communication tool every modern team needs in their arsenal to improve clarity and build their team spiritSlack plays a crucial part in how all of our organization and its departments communicate with one another. Slack helps us stay on track on most important conversations that happen between and within teams, and the wealth of integrations make it our central hub for notifications. Also, with 1/3 of the team being remote, it's one of our primary tools of keeping in touch with people who we don't see every day at the office.,Brilliant user interface (sending messages, creating groups, finding relevant information is easy). Improves communication and is super fun to use: you can express your feelings in GIFs or reward team members with imaginary tacos - there are so many fun ways to use the app! Wealth of integrations with other tools (meaning we can create tasks in seconds in tools like Asana or even monitor all relevant notifications coming through for leads or costomers from HubSpot).,Having a lot of notifications can feel overwhelming sometimes (but Slack allows you to tailor what you receive notifications for). It would be cool for video calls to take up less bandwidth and be of better quality. Search functionality focuses on relevance, not date but has improved A LOT in the last year.,10,We have improved how we communicate across teams and timezones Team members develop stronger relationships as Slack allows them to show their personality and be a bit more fun Faster responses on live chats on our website with the help of notifications in Slack,10,8,Skype and TeamViewer,WordPress, Dropbox, SquarespaceSlack revolutionized my lifeSlack has revolutionized the way we communicate and share updates. I first came across slack when joining a new research group, where the lead is split between ours and another academic institution. Email is a bit difficult to keep track of when you're as senior as he is, so I was told to use Slack to keep him up to date with things and ask any questions. I have since used it for my project, and it is by far one of the easiest ways to manage and communicate with the rest of the team on a day to day basis. I can manage, read, reply to and create my own messages at my leisure, as I could with emails, but without the faff.,Simple design and super easy to use. Lots of customizations and integrations of other apps (like calendars). Having a standalone app makes it much more appealing to the younger generation who would prefer to be able to access it on the move too.,I had a few issues in trying to get the channels set up properly, but less of an issue and more of a learning experience.,10,It has made it much easier to communicate with people who are remote to my office, but part of the same team, allowing us to collaborate effectively. It's free, so any benefit has already outweighed the input!,10,10,The best team communication and collaboration app availableOur entire organization uses Slack to communicate on projects, to build and support company culture, and to collaborate with other 3rd party vendors when we are working together to create integrated systems and solutions. There are a lot of other software programs we could use for different collaborative tasks but Slack allows us to do all of them in one place (e.g. standard communication, file sharing, restricted channels, etc.).,Slack allows you to pin specific content so it is easy to find within a channel even if it was posted months or even years ago. Slack allows each user to deeply customize how they use the program. So everyone can be on the same company account but set their own navigation and aesthetic preferences. Slack is very integrative. You can set up automatic notifications in specific channels based on triggers occurring in your CRM or marketing tools.,You can create channels and bring people into a DM, but unfortunately, you can't add people to an ongoing DM. Sometimes we have two channels serving a similar purpose and we need to archive one of them to be more efficient. It would be nice to be able to merge the two channels or do something similar to preserve important content from both places. GIFs are often too big for Slack to display so they appear as a link and have to be expanded to view the content. It would be nice if Slack could handle larger images.,10,Slack has helped us be more efficient and finish projects quickly. Slack allows us to grow the company culture and keep valuable employees. Slack allows us to respond instantly in emergency dev or client need situations.,9,9,Trello and Hive,Trello, Zenefits, Grow.comAn Awesome Application for Enabling CollaborationIt was a nightmare before when coordinating software delivery teams within the organization. However, after we adopted Slack our software delivery teams got a very reliable collaboration tool. With this software, different teams can work together across geographic boundaries without limitations. It has also been integrated into our workflow and development pipeline to ensure smooth flow of communication. Project management teams remain on the same page all through the period of project execution courtesy of Slack.,It allows team collaboration It allows remote collaboration Slack allows communication with external parties,Sometimes it brings too many notifications which are annoying The use of emojis and GIFs makes it informal,10,It has made collaboration in the organization to be significantly easier It is easier to communicate with external teams,10,10,Skype for Business (formerly Lync),Mailchimp, Workfront, Google Ad ManagerSlack will raise the level of internal communication of your companyOur company was looking for a tool to standardize and centralize all internal communication. This limited the use of emails and helping to prevent conversations and exchange of confidential information of the company or projects of marketing actions and information were being exchanged free by there being able to be leaked. Slack was the choice, became the company's internal communication tool, centralized communication and also gave more agility, besides efficient, Slack proved very modern and attractive, officials love to work with it.,Plugins and integrations - Slack has many interesting plugins and integrations that leave the tool with the most modern air, such as the Giphy plugin that allows you to insert GIFS of reactions in your conversations only using search phrases. Apps - mobile apps are not just web-based adaptations to work in a basic way, on the contrary, Apps are robust, complete and seek to use the full functionality of each mobile platform (iOS /Android). Interface - Slack has a clean, modern, intuitive look and this helps to take the "weight" of the constant messaging, the employees spend hours communicating in Slack and its interface helps to make this journey lighter and more pleasant.,The sorting of channels - it's a bit confusing, could be better sorted, it would make it easier to search and make it more agile. Search - It could also improve, it is not bad, but in some cases (rare) it is difficult to find the term that you want. Heavy performance in other operating systems - At least in Linux, Slack seems to do a little more machine performance than when it is used on a computer running Windows.,10,Slack streamlines all the internal communication of the company, consequently helps to streamline several other procedures of the company thus giving more time of productivity to the officials. Slack is also an attractive and pleasant program for the officials, who like to use it, the look of it helps soften and delay fatigue due to hours of message exchanges, which would certainly be more stressful if they were made through an email exchange.,Skype,Zendesk, Adobe Connect, Sage Intacct, Shopify, ESET Endpoint SecuritySlack - Awesome at enabling collaborationSlack has been used across our software delivery teams as the go to collaboration tool for a number of months now. It helps us work together across geographic boundaries and is integrated into our workflow and development pipeline. It means we can all be sure we are on the same page and also easily contactable.,Remote collaboration Team Collaboration Enable communication with external companies,Can come across as not a serious tool due to use of gifs emojis Notifications can be annoying Sometimes hard to be across all channels without explicitly being invited,10,Hard to quantify but it has made collaboration significantly easier Far easier to communicate with external teams,Jabber, Workplace by Facebook and Skype for Business (formerly Lync),Oracle Eloqua, Optimizely, Tealium AudienceStreamWe're more efficient and yet communicate more!We use Slack with all of our management staff, and it has drastically cut email volumes which would often reach astronomical levels and not all of the relevant people would be informed of news or updates. This way, if you're interested or implicated in a department, you'll be on the slack channel and will instantly be informed!,Avoiding email communication and keeping internal communication concise and to the point Making sure the relevant team members can have relevant discussions instead of ignoring length emails that seem pointless or overwhelming Allowing you to snooze notifications so you don't have to receive work notifications outside of work (unlike WhatsApp or SMSs),The snooze function often seems to kick in automatically which I personally don't want (I actually like to be always connected),10,It's free and has drastically increased our efficiency!,Trello, Salesforce Community CloudCreate unanimity amongst team membersSlack is a professional messaging tool used in our organization. It is a very useful tool as it brings the whole team on a single base while talking about the project modules. The Slack channels help us to easily formulate the idea and discuss that topic. Highlighting important notes is also a good feature which lets us control the content and use it when necessary. Also, the admin has the rights to give access for speaking and listening individually which avoids creating a mess in the discussion, which I personally like. Apart from that, we are using Slack at different levels, like we have a channel for the module on which my team works. Also, we have a general project-based channel where we discuss the updates and so on in the hierarchy. It is being used by every single person in my company.,Channel creation Highlights Control over discussion Dark theme,Not easy for beginners. Mobile app requires some improvement,10,Positive impact on business and creating unanimity amongst team members.,AWS Device Farm, IBM Watson Machine Learning, Amazon RekognitionGreat communication tool within an organizationSlack in used in our organization as a messaging platform over the web, where we connect with our colleagues and share information i.e, files, documents, pictures, etc. Slack is an alternative to most of our bcc's and cc's mail. It is used across the whole organization. Through Slack, we form a small group while working on a project, we do this for quick and easy passing of information.,Easy to use. Nice UI and UX. Get a notification for every message that we receive. Can form a small group to communicate with others while working on a common project.,No automatic messaging send option available. Sometimes message notifications are received with some delay.,10,It's good but a bit costly.,LinkedIn Sales Navigator, HubSpot CRM, SalesOutlook CRMSlack handles our company communications wellWe use Slack across the whole organization. We have channels for different departments/teams, as well as inter-departmental channels, and heavily use the direct messages. It is used for discussions, and for support, including sharing screenshots, etc. It is also needed for looking back at older conversations, and to reference tasks/decisions from the past.,Chat history. You can search the history of chat channels or direct messages, even if you joined at a later date. Integrations. Many supported apps, such as Google Drive, Jira, etc. Use anywhere. Can run as a program on the computer, or just in a browser, or on mobile devices.,Left Navigation Pane. The left nav is not able to be resized, so I can't actually see the whole channel or person name. Really annoying when the phone extensions are added to the end of the names, but they are hidden by the left nav. Conversation List Sorting. The conversations, specifically the direct messages, auto-sort, and auto disappear based on what Slack thinks it should do. I constantly have people/conversations missing from the left nav and have to search for them manually. More-Actions Bar. The "more actions" bar that shows up at the right of the conversation view frequently gets in the way of actually clicking/highlighting text in that conversation. It needs to be set to not be on top of the conversation that is being hovered over.,8,Positive: The ability to maintain a constant point of contact to anyone in the organization. Positive: The ability to maintain an archive of company communications. Positive: The ability to have "guest" users that don't actually use a paid license.,HipChat,Microsoft Office 365, G Suite, GoToMeetingThe right tool for the jobWe use Slack throughout the company as well as a communication tool within the incubator program our company is in. It has been an excellent way for everyone to communicate, share ideas and to stay on top of tasks and projects that are ongoing. I also use Slack as part of another organization that I collaborate with and it has been instrumental in everyone staying informed on the day to day activities that are taking place.,Being able to create channels is a great strength. It allows team members to be grouped and in-the-know where necessary, while not needing to be notified when it's not applicable. The "Do not disturb" feature is a simple, but important one to have. It's a great way to be able to turn off and tune out of work during personal time. Sharing files and links is super simple. Being able to go back and reference them and easily find them makes it instrumental as a communication and collaboration tool.,When it comes to direct messaging, I wish that the most recent messages would automatically be listed in the section below the Channels section. If you want to see your most recent direct messages you have to swipe sideways when looking at the channels screen (on mobile) and then see your most recent messages. Just seems like an unnecessary extra step. While I love the "do not disturb" feature, I think Slack should make it clear that by default it turns on after a certain time. When downloading and using the app for the first time I couldn't figure out why I wasn't receiving notifications. It wasn't until I learned about Do Not Disturb that I realized I had to change my settings. It should be something that a new user is made aware of when first downloading and using the app. I don't know if everyone experiences this or not but it seems to me that the desktop app does not update as instantly as the mobile app (I use a Mac). It's not an issue of my internet speed as we have a perfectly fast connection, and besides, my iPhone is connected to the same network. The desktop app just seems to lag a little.,9,Better communication = time efficiency. Simple. The ability to separate groups into channels makes applicable work easier to handle and discuss. This also increases efficiency among those involved. Being able to collaborate with others in our incubator has provided us with other ideas and tools that we weren't aware of. In turn, we have made purchasing decisions that have benefited our company greatly.,,Gusto, WebTextToolLove it! Slack is the best intra-office communication tool we've usedWe use it to collaborate with other departments, as well as our affiliates, whenever we have joint promotions or projects.,It loads quickly. Allows you to attach a wide array of documents. Interface makes it very easy to navigate. The history is easy to search.,Logging in can be a little clunky if you are using a different machine for the first time. Sometimes the left rail becomes overwhelming. Uploading new logos/GIFs/pictures can be a little convoluted.,10,Helps everyone stay on the same page. Keeps employees from different departments in communication.,Skype for Business (formerly Lync),10,Tableau Online, Looker, Return PathGreat for inter-office communications and API IntergrationWe use Slack for interoffice communications across our organization.,Does a great job at interoffice collaboration Reduces email communication Improves work flows,Office 365 integration with SSO would be great Reduced cost compared to MS Teams Having multiple owner admin accounts would be great,10,Turn around time for projects has improved Slack is more expensive than offerings that are included for free, such as MS Teams Multi-tenant support is a huge selling point over MS Teams,,10,Microsoft 365 Business, Microsoft Azure, Microsoft Application ServerSlack to keep group communications in check.Slack is used in my organization for instant conversations between team members and developers for each project we are working on. It's instant access for my support team to developers in case of emergency tech issues.,Instant chats Managements File Attachments History,I don't always get notified of new messages even though alerts are turned on.,10,We communicate more efficiently.,,1,CamtasiaSlack is the best professional chatting applicationSlack is used for communication between team members. It is also used for sharing documents very quickly. Slack channels make it very useful to connect with other developers in the organization when any help is needed. SlackBot is used a lot for any useful notifications and managing emails. The self chat window is used to write some information which we want to retrieve quickly.,Fast communication between team members. SlackBot is very useful for undertaking some tasks like email management and sending notifications to other members. Sharing documents quickly. Snooze notification feature.,Slack takes more CPU power than expected. The desktop version is slow to load after being closed completely.,9,Slack channels are used widely for getting any help with a task or project. SlackBot makes our jobs easier by undertaking some tasks. Sometimes it is useful for quick calls.,10,9,Google Hangouts,ZoomGet some Slack in your daySlack is currently being used throughout the entire organization. It is the only way we really communicate with each other. We also use it with clients if they are permitted to connect with a 3rd party for chat. It allows us to converse on project needs, challenges, and confirm decisions or sign off.,Easy creation of messages on both public or private channels. Allows integration and reliability with GoToAlly and 7 Geese.,Searching is not great. Although partly it is due to our own inconsistency in words we use sometimes. I wish the mobile app had full search filter capabilities. Notifications don't seem to work as I set them.,9,Positive - Makes agile operations and product teams more efficient. Positive - We are able to use it with third parties.,8,9,Atlassian Confluence, GitHubVery Light and Handy Application for communicationI use slack to chat with my team, share documents etc. I also use to get help in slack channels which is really great. I feel we all are connected and can get help whenever needed. I use it because it is very fast communication tool as compare to email conversation. I use it to call my teammates as well.,Slack is very light and handy to use. We can share image and chat very fast. Slack provides Slack channels which are very useful when we need some help from the developer community of our organization.,The UI of Slack can be made better by adding some transition features. I cannot broadcast message in Slack. The Slack takes bit more time to load when started.,9,Slack makes communication fast It makes job easy as we can get fast help from anybody in team and other community in the company Anyone can talk on call with it fast just like any other VOIP call.,10,9,Google Hangouts and Facebook for Business,Google Hangouts, Facebook for BusinessSlack - A Great Messaging PlatformSlack allows our whole team to be able to collaborate on projects, keep in touch with people who are working remotely or who are out for the day, allows us to have group calls and individual calls with each other, and motivate each other with its taco reward system. It is mainly used as a messaging app for internal communication but there are a ton of uses.,Slack Calls allow you to keep in touch with people not only with messaging but through audio as well. The taco reward system has become a huge deal at our company where we can motivate each other. Being able to set custom statuses if you are working out of the office or at a conference is very handy.,Slack mobile could use some updating. I have issues with the app on my phone and not working as it should. Slack messages on mobile devices are something that is an ongoing problem. Most of the time they come through, sometimes they don't. Audio quality could be better on some Slack calls. This isn't a big problem but something I have noticed a few times.,8,Slack allows us to not have to make a phone call every time something is needed saving a lot of time. The service allows us to have calls or to message people who are out of the office which is great. The taco rewards program has boosted morale which lets people give each other compliments or shout-outs.,8,Bold360, Zoom, LoomSlack, the best 4 in 1 solutionSlack is the central communication tool for our organization. When I started, we were only really using Slack for instant messaging. That has grown over the years to the point where we use Slack for internal calls, messaging, company wide and private communication channels, online meetings, and inter-office calling. I really like the evolution of the solution and it has replaced multiple tools that we'd otherwise use in our organization (like email, gotomeeting) into one single solution. I really like the mobile app and the experience between devices is seamless. My only nit-pick is that sometimes searching within the app can be a little wonky. Finally, the api for the system is nice and allows for nice integrations with our internal project management tool. Their app store is also comprehensive and the salesforce integration is useful.,instant messgaing video calls integrations-ability to create help tickets with commands within Slack,the internal searching mechanism could be better sometimes run into bandwidth issues on calls have had some issues picking up the microphone on my headset sometimes,10,has increased productivity and collaboration between team members reduced the need for internal voip and screen sharing allowed for better communication between remote offices,Skype,9,Google Drive, TargetProcess, Tableau Online
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Slack
2496 Ratings
Score 8.9 out of 101
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Slack
2496 Ratings
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Score 8.9 out of 101

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Raúl Galera Domínguez profile photo
Score 9 out of 10
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Scenarios where Slack is well suited:
  • Distributed teams and/or companies with multiple offices.
  • Startups: Helps new employees get a quick view of the "bigger picture" -- everything that's happening inside the organization.
  • Teams that need real-time communication to run their operations (eg. customer support, engineering).

Scenarios where Slack is less appropriate:
  • Large organizations with several hundred employees if not managed correctly -- it can add too much noise/distractions.
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Amy Sternin profile photo
Score 8 out of 10
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It is especially valuable in helping with communcation between remote team members. The ability to call and share screens is really helpful, and has become our go to method to communicate, eliminating the need for skype and our various conference call systems available in our company. Using Slack for calls and meetings is now extensive within our group, and is done many, many times per day. it is easy to add people and to share and give sharing capabilities to other team members.
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Viraj Chandarana profile photo
Score 9 out of 10
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1. Communicating with my team becomes so easy.

2. All of our team is working remotely and Slack made our life easier, especially when Slack has shown me the timezone or the current time of each member.

3. Integration between all of our tools like AzureDevOps, Trello, Google Drive, etc. makes it a one-stop tool for all of our tools.


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Jason Smith, DPA profile photo
Score 3 out of 10
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Slack would be well suited if you had a development team in Mongolia and another one in France and they did not have to talk to each other a whole lot. Slack would be a good record of fact on what might be going on between the groups. It can keep track of things, almost like a log of human interactions.
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João Almeida profile photo
Score 9 out of 10
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Slack is well suited for communication within an organization and it is ideal for not very large groups. It is not so suitable for reaching out someone in a more formal way or when large files need to be shared. For larger organizations with a more formal hierarchy, this tool might not be very useful to be utilized across the several layers of the hierarchy.
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Aisha Khamisi profile photo
Score 10 out of 10
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It is well suited for small groups as you will have control of all notifications received. For larger groups, it might be difficult to control alerts received and you will be confused. It is perfect for short term projects as it would be easy to manage content.
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Veronika Baranovska profile photo
Score 10 out of 10
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Slack is a brilliant communication tool for teams of all sizes and industries, but it's probably best suited for businesses that use a lot of digital tools, like B2B SaaS or e-commerce. Implementing Slack the right way and making sure the channels and workspaces don't become a mess is crucial for everyone to have a good time while using it.
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Daniel Morse profile photo
Score 10 out of 10
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If you talk to people or manage people, and want to free up your time and theirs, use Slack. It is a fantastic communication tool and allows personal, individual, group or whole organization chat groups that can be separated into specific topics. There is a very generous message allowance on the free option, with more again on the paid ones, along with additional features. Big or small organizations, it's great.
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Mike Hilverda profile photo
Score 10 out of 10
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Slack is great for smaller, short term projects. Channels can be set up quickly, topics set, and content loaded quickly. However, it struggles more with long-term projects where a lot of content needs to be managed and organized. Because channels and DMs scroll like a text message chain, it is not easy to manage sub-tasks within the channel like in a kanban board.
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Alfred Vickman profile photo
Score 10 out of 10
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Promoting teamwork in an organization. With this software, different teams can work together across geographic boundaries without limitations. It has also been integrated into our workflow and development pipeline to ensure smooth flow of communication. Project management teams remain on the same page all through the period of project execution courtesy of Slack.
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Marcio Vizoli profile photo
Score 10 out of 10
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Likelihood to Recommend

If you are looking to centralize, standardize your internal communication, give it more security and agility, Slack is a great choice, adapting to it is super fast, its implementation is easy, employees love working with slack, so if you have a company with an average number of employees or have branches in different places, or if you need an internal communication tool, it's a chance to Slack.
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Adam Hatfield profile photo
Score 10 out of 10
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Likelihood to Recommend

Slack is really well suited for organisations with geographically dispersed teams who need to collaborate and communicate effectively. It is particularly well suited for collaboration amongst technical teams. It also works very well to enable communication with third parties such as vendors or suppliers.

What we have found does not work as well is collaboration with more business focussed teams, for some reason they don't take to it as well.
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Claire Baker profile photo
Score 10 out of 10
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Likelihood to Recommend

Slack is great for smaller companies, I wouldn't see it working for larger companies so well as you can't easily manage a whole team and the volume of messages would just be too much. Or perhaps you could use it on a departmental basis. We also use it for free so it's great for organizations with a tight budget!
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Sam Lance profile photo
Score 10 out of 10
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Likelihood to Recommend

It is very well suited in organizations to manage team members and discussions amongst team members are made easy using Slack. It helps us to clear the thoughts and doubts amongst teammates to avoid wrong interpretations and develop a refined product unanimously. So I would say for any team-based working Slack is perfectly suited and plays a great role.
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Divesh Kumar profile photo
Score 10 out of 10
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Likelihood to Recommend

It is best suited in all sorts of organization, small or big, it well suited in all firms. Its best use is that it can be used to form a group for communicating with our colleagues while working on a common project. It also can be used as a reminder for our important stuff.
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Kristopher Kauth profile photo
Score 8 out of 10
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Likelihood to Recommend

Slack is good for team collaboration and discussions, and for one on one messages. It is very useful to be able to search through conversation history, and for new members of channels to be able to see the complete history, and not just from the point that they joined the channel. It is also useful to be able to be logged in and use it on desktop and mobile device at the same time.
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Daniel Shatzkes CEO Entrepreneur, Manufacturer, Musician profile photo
Score 9 out of 10
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Likelihood to Recommend

It's great as a business communication and collaboration tool. I know people who like to use WhatsApp for their business communication but I find Slack to be far better suited for business (as it's intended) and WhatsApp for personal use. In fact, I find Slack to be a little cumbersome and overkill to be used just as a personal messaging tool (although it obviously can with the free version).
Read Daniel Shatzkes CEO Entrepreneur, Manufacturer, Musician's full review
Erin Harris profile photo
Score 10 out of 10
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Likelihood to Recommend

I manage a tech support desk and I often need a developer to help troubleshoot... or often in cases of a 911, everything is on fire and they are alerted immediately and are able to respond immediately even if they are not on a computer.
Read Erin Harris's full review
Denise Olivares, CLU, ChFC profile photo
Score 9 out of 10
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Likelihood to Recommend

Slack is very well suited to agile work teams. It helps keep them engaged and able to share. It is easy for business people to use when they are driving product development and product management. It is also super nice to be able to have conversations with our client engineers so that we don't have to go back and forth from email to Slack and back again.
Read Denise Olivares, CLU, ChFC's full review
Pratik Shah profile photo
Score 9 out of 10
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Likelihood to Recommend

Slack is well suited in a team environment and the whole team is not close to each other. If you want to send some message and expect very quick reply slack is very useful. Also fast sharing of images and other documents is possible through slack.
When you want to send some confidential message I think slack is not proper as it has not shown any security features like encryption
Read Pratik Shah's full review
No photo available
Score 8 out of 10
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Likelihood to Recommend

Slack is great when it is used as a messaging app between individuals and teams. We have multiple channels set up for different purposes. One for water cooler chat, one for business-related announcements, one for people who are involved in a specific project, one for each team, some for individuals to communicate, it is a great messaging tool.
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No photo available
Score 10 out of 10
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Likelihood to Recommend

It is an excellent communication tool. It is especially useful for a remote office. The screen sharing is very well implemented. VOIP quality is also good. In many ways it will replace long email strings and dedicated voip systems for inter office communication. The app marketplace also allows for a variety of plugins that can connect slack to tools like the g-suite and salesforce.
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Feature Scorecard Summary

Task Management (72)
7.9
Gantt Charts (25)
7.7
Scheduling (51)
7.9
Workflow Automation (61)
7.5
Mobile Access (125)
8.7
Search (123)
8.0
Visual planning tools (33)
8.1
Chat (136)
9.5
Notifications (134)
8.9
Discussions (130)
9.1
Surveys (57)
8.1
Internal knowledgebase (64)
8.6
Integrates with GoToMeeting (35)
8.7
Integrates with Gmail and Google Hangouts (64)
8.5
Integrates with Outlook (35)
8.4
Versioning (50)
7.4
Video files (100)
8.3
Audio files (101)
8.3
Document collaboration (80)
7.9
Access control (73)
8.6
Advanced security features (60)
8.3
Integrates with Google Drive (76)
8.8
Device sync (83)
8.7

About Slack

Slack is a group messaging or team collaboration app that aims to simplify communication for businesses. Features include open discussions, private groups, and direct messaging, as well as deep contextual search and message archiving, and file sharing. Slack integrates with a number of other tools, such as MailChimp, Dropbox, and Google Drive.

The product is free to use, and also has paid plans with more features and greater controls.

The company has raised $340M in funding and boasts 800k users.

Categories:  Collaboration

Slack Integrations

Slack Competitors

Slack Technical Details

Operating Systems: Unspecified
Mobile Application:No