Slack Reviews

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Score 8.9 out of 100

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Reviews (1-25 of 175)

Cat Nguyen | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
Slack is currently being used by our entire organization. There's a small number of employees at headquarters in New York City, but the rest of the company is remote, spread all over the U.S. and the globe (UK, Germany, India, Japan, Korea). My specific department consists of 1200+ employees, and Slack is THE way that we communicate. It's a seamless, vital part of our work lives. Truthfully, we wouldn't be able to function as a company without it!
  • Flexibility around notifications. Being part of a 1200+ employee company & a member of multiple channels & groups in Slack, it's fantastic being able to control that notifications I WANT to receive (and which I'd like to "mute," another helpful function).
  • The ability to create separate "channels" & groups. This has been key in making sure communication is organized & categorized in a way that makes sense. For example, we have separate channels for announcements, tech-related troubleshooting, different departments, etc.
  • Ease of use & just plain fun. With emojis, "reactions," and gifs built in, communicating can be quite fun :)
  • A channel initially created as private can't be changed to public. (However, the reverse is possible -- public channels can be made private.)
  • The flip side of all the features, functionality, and "fun" aspects of Slack is that it can be a distraction from real work if you're not careful (there IS such a thing as falling into the Slack rabbit hole!).
When there's a team that spans time zones and continents, Slack is the perfect tool for communication & collaboration. It houses a workplace directory, so any employee can be searched for by name. Sending a direct message to any individual in the company is as simple as finding their name, then typing a message & hitting send! Essentially, it's a hub for all communication -- individual, team, and company-wide announcements can be quickly & easily disseminated using Slack.
Read Cat Nguyen's full review
Benjamin Plotkin | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
Our department is among a handful that uses Slack as their primary work messaging tool (the organization default is Microsoft Teams). Slack is being used to support direct messaging and group chats between on-premises and remote employees, as well as service providers and vendors. It provides a system-agnostic communications workspace that can easily be ramified into various private and public channels as changing needs demand.
  • Slack is a solid chat tool that works across a variety of platforms, with a very low barrier for entry: new users can be invited via email, and can use web-based, desktop, or mobile versions of the application.
  • Slack has really captured the zeitgeist of digital culture, including strong support for customizing look and feel (including custom emojis), and a plethora of integrations with popular web-based tools, including Pivotal Tracker and GitHub on the productive side, and on the fun side.
  • Slack continues to refine and improve their product, with new features being rolled out just about every month.
  • Slack offers a great value in their free version of the app, with most of the tool's functionality available for no cost.
  • While their focus on continuous product improvement is admirable, the pace of change sometimes introduces bugs to existing features.
  • Some workspace administrative options require logging in to the workspace website -- it would be great to be able to manage all configuration directly from the desktop app.
  • Allow me to be petty for a moment: Why can't we have bigger emojis?
Slack is great when you have a working group that is spread out over various locations; beyond facilitating productive chat sessions -- as well as video conferencing and screen sharing (depending on your pricing tier) -- Slack's fun features can really help to build team camaraderie.

Slack may not be a great fit for working groups that prefer face-to-face communications, or those teams that are already well-acclimated to another group chat tool.
Read Benjamin Plotkin's full review
JaCoby Marston, CPA | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Review Source
I love using Slack. It is by far the best communication system out on the market for businesses to use. I have been using Slack for over a year and I love how easy it is to create group chats and individual chats. I am able to connect with fellow employees with ease. It is super easy to share files and links with co-workers. Another cool thing is if another company has Slack, you can connect with them which is super nice because you can have a live chat with any user of Slack. Slack is my go-to for communicating with co-workers because it allows me to get almost instant answers.
  • Easy to communicate with fellow co-workers
  • Ability to communicate with other companies that have Slack
  • Slack downtime is very rare, if any.
  • It gets very expensive if you have a huge company
  • Unable to unread messages to remind me to read again
Slack has been built to work on your web browser, as an app on your computer, and an app on your smartphone. Slack has spent the money to make sure that their program rarely has downtime. I love how easy it is to communicate with my co-workers on Slack. It is easier than sending an email to a co-worker. Slacks improves efficiency in the company because employees are able to communicate with each other with ease especially if the company has multiple locations across the country or across the world. Slack will even let you know what time it is for the recipient you are sending the message to which is great if you have overseas employees.
Read JaCoby Marston, CPA's full review
Raúl Galera Domínguez | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Review Source
Our 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.
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.
Read Raúl Galera Domínguez's full review
Logan Turner | TrustRadius Reviewer
January 10, 2020

Positive Slack Review

Score 10 out of 10
Vetted Review
Verified User
Review Source
We use Slack for all communications within our company. We communicate via direct messages or via specific channels related to departments, tasks, customers, marketing, news stations or general communication. It allows us to keep track of all things related and refer to any conversations that we had in the past.
  • Communication.
  • Organization.
  • Notifications.
  • Giphy.
Slack is very easy to use and can be very effective. I enjoy speaking through gifs, so the Giphy option is very friendly and always adds some fun to my communication. I am able to communicate with all members of my team, regardless of where they are in the US.
Read Logan Turner's full review
Harshit Bhattaram | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Review Source
At our current workplace, we are connected to two teams via Slack. One is our own and the other is of a Fortune 50 company which also uses Slack. So Slack as a whole is used by the entire company and also customers/clients we interact with on a day-to-day basis. The primary business need being staying connected with colleagues and also collaborating on work is what makes Slack great software to use on a daily basis.
  • Multiple channels/groups for a specific purpose.
  • Excellent functionality for code snippets.
  • When pasting a large code snippet it hangs and has to be force closed.
  • Video calls can be improved by giving more functionality like pass control and so on.
The ability to collaborate between multiple teams including customers and clients is a superb pro feature when dealing with Slack and it's a scenario where we find Slack to be useful.
However when it comes handling a video call where multiple people speak and they are sharing the video and also want to share the screen or maybe request access to control the desktop, Slack needs improvement and it's less apt.
Read Harshit Bhattaram's full review
Gabriela Band | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Review Source
Slack is used across all of the organization to help us communicate, collaborate, align and focus. I think it is the killer productivity app that helps us be more efficient on our day-to-day. The multiplicity of integrations is what generates the most value. The possibility of creating channels and threads is very helpful.
  • Works on any device.
  • Integrated with a lot of PM tools.
  • Reliability issues. Sometimes the app stops working.
  • Notifications are very annoying.
I think Slack is a really good product for organizations of all sizes. It works for startups and big corporations alike. Since it can be expensive according to the plan you choose, it is really important to make sure you take full advantage of its functionalities and not use it only as a chat software, since there are cheaper alternatives for that.
Read Gabriela Band's full review
James Buchholz | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
It is used in 2 of our 3 offices. It addresses 90% of our communication needs. We don't even remember what we did before Slack to communicate.
  • It's PERFECT for getting quick answers and having quick light conversations with coworkers.
  • Downtime is very rare.
  • It integrates well with other programs and has great little add-ons.
  • It can become a crutch when people become so accustomed to instant answers.
  • Can hinder productivity with add-ons and apps like Giphy.
Great for any business that needs more immediate communication than email provides. Well suited for business where workers don't work in the same room, e.g. remote workers. Slack can make it almost as good as if everyone were in the same room.

It's less well suited for serious conversations and again can hinder productivity if people start losing their focus on their project just to answer every little message.
Read James Buchholz's full review
Lokesh Meena | TrustRadius Reviewer
Score 7 out of 10
Vetted Review
Verified User
Review Source
Being honest, we are not on Slack now. We left it a few months back and now our whole organisation uses Workplace. But when we were using Slack for our organisation, we used it for internal communication and live chat in various departments and to share project updates or documents which needed to be shared quickly. It is still very easy to use but doesn't fully meet all of our requirements.
  • It has a nice UI and is easy to set up and use. New team members could easily get updated from a particular channel as well.
  • It has both mobile and web-based versions available allowing us to use it on the go.
  • It is free for most of the cases and allowed us to create different channels or groups for different departments, teams or projects.
  • It offers easy integrations with most used services like Google Drive, GitHub etc.
  • Its paid plan is very expensive for startups and businesses having low revenue/big teams.
  • For large organisations too, it creates chaos because large numbers of users generate large data. Slack does not support much management of this.
  • Sometimes it looks like we are using a messaging app instead of a professional service, as it has all the features of instant messaging apps, like emojis, etc. Professionally sometimes, these don't seem to be useful.
Slack is very well suited if you have employees situated at different places or offices, especially if some employees have to go out for field work. It's very easy to update the task or work done remotely using Slack's mobile app. Slack doesn't seems to be useful in cases of full professional needs, as it lags in many ways in comparison to its competitors.
Read Lokesh Meena's full review
Jason Smith, DPA | TrustRadius Reviewer
Score 1 out of 10
Vetted Review
Verified User
Review Source
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.
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.
Read Jason Smith, DPA's full review
Roberto Antonio Costinho Sosa | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Review Source
We are currently using Slack in all work teams in the digital area. Each sector has its own Slack group and they are not interconnected. The marketing, web development, Windows application programming, and graphic design groups have their separate areas. Integration with external software tools is great. It has a very varied catalog and each digital production department makes use of the extra applications that are most convenient for it. There is also a space in Slack for the entire organization, which has a channel of official communications. It is very easy to send messages and receive them. This is where we resolve general issues and receive instructions regarding the company's management.
  • Perfect integration with external applications. The catalog is huge and responds before many needs of the digital work world.
  • Instant messaging is on another level because of all the features in the chats. The threads are great to continue a conversation.
  • Segment communication with channels that can be created at will. It's great to talk about various topics without mixing them.
  • The Search Bar is great: search even within the content of the documents shared.
  • At first, it is difficult to use Slack. It has many functions that are not intuitive to learn to use.
  • The browser application sometimes does not send notifications on time.
  • The license is expensive.
Slack maintains team communication focused on a single space. Productivity is greatly improved because integrated applications are kept in one place, which avoids distractions. It is great for digital work environments.
For occasions when you have to talk to staff who do not work in the digital areas, it is equally helpful. With the integrated Dropbox functionalities, you can share files referring to the important documentation of everyone in the company. It is not appropriate to use Slack without making the purchase of the paid license. The definitive limitation is that the free version has a limit of messages that can be saved, which includes the files that are sent.
Read Roberto Antonio Costinho Sosa's full review
Alexa Fuhrman | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
My company uses Slack for communication purposes on a daily basis. We can send files, Pictures, Giphys and much more! It has a way to set reminders for our group channels so certain tasks are able to be set for daily reminders. It helps us communicate and avoid any gaps in our daily tasking.
  • To send photos, all you have to do is click, drag, and drop into the chat box. Very easy!
  • I like how easy it is to create as many conversations as you'd like with 1 or more individuals.
  • There are groups that we have that many agents can communicate big changes in an instant! By just the click of a button.
  • I'd like to see a little more customization as far as my view of slack goes. Such as skins or color changes.
  • It would be nice to be able to have a chat board where you can see several conversations at once instead of toggling back and forth from one side bar and only being able to be in one chat at a time.
  • There are certain times when someone will leave the company and they have a Channel open that they created. Others can't close it because the individual would need to close it however they are not around any longer. It would be nice if we could remove those more easily.
Slack is suited for a small growing business that needs several channels of communication between departments. It is nice also because Slack has a phone app, so you don't even need to be at your computer to use it. We can easily get a message at any time when we are available on the app. Very convenient for those of us who are more mobile!
Read Alexa Fuhrman's full review
Marco Carnevali | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Review Source
We use Slack for the whole company: we divided each department by Slack channels. We use it daily in order to connect every office [that are in different time zones.
  • Integration with third-party apps
  • Good time zone support
  • Slack Calls
  • Slack Price
Slack is the best communication system if you have offices all around the world and if you use software like Google Suite, Salesforce etc. I don't think it's appropriate for really small companies with less than 5 people.
Read Marco Carnevali's full review
Layne Latham | TrustRadius Reviewer
Score 7 out of 10
Vetted Review
Verified User
Review Source
We use Slack throughout our company to communicate between and within teams. It's used for both projects and regular day to day communication that would otherwise be done via email. Slack allows our employees to share documents and participate in group discussions, as well as communicate around specific events (managed through individual channels).
  • Instant communication with the ability to snooze notifications
  • Allows you to share documents and refer to them at a later time
  • Allows you to set your status so that you aren't constantly interrupted with messages if you are working closely on a project
  • Needs the ability to select specific gifs, the interface to send gifs is clunky
  • When additional channels are created, it's hard for participants to keep up on the channels that include info for them, basically requires that they are "at mentioned" or they get ignored
  • It would be nice to be able to hide channels you don't care about
Slack is a useful tool in instances where you need to get your entire company or team utilizing one method of communication outside of email. It's similar to other chat platforms but has a number of additional benefits like the ability for developers to share code back and forth. It might not be useful in instances where employees use it as a distraction.
Read Layne Latham's full review
John Chavez | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
The way we used Slack was to communicate within the training team, the other thing was to send simple files and photos. For example, because we would work offsite quite a bit we would need to take pictures of the restaurant, using Slack allowed us to send pictures quickly to the director of training and development. It was also easier to use this tool to communicate in the office when we were busy and didn't want to interrupt anyone. We had a fairly enclosed space so this allowed us to talk not only in private within our team.
  • Easy to send files and images.
  • Easy to download the app and use for in-home use. We used it both on PC and on our phones through the app.
  • Requires no training or additional software.
  • Slack had a tendency to freeze but we couldn't figure out why.
I think the best use for the tool would be via the app especially if you travel a lot and you have a team (if you are a manager this is exceptionally important). But this app allows you to very easily communicate with anyone fast and efficiently. I think it's also a good way for a small company that doesn't have the room for a board room, you can easily handle small private meetings via Slack.
Read John Chavez's full review
Román Josué de las Heras Torres | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Review Source
Slack is being used across the whole SAP organization. It allows us to communicate and share files.
  • Slack allows for real-time communication, both at the organizational level and personal level, thanks to the channels you can create.
  • The quality of voice calls and screen sharing is high.
  • The instant messaging service has many useful and unique features. I like a lot that you can share code snippets, which is great for software developers.
  • The Slack learning curve is relatively high, especially for non-tech people, learning to use Slack might take some time.
  • There are not many themes, and the existing ones are mainly a change in the color palette.
Slack is well suited for organizations which are geographically distributed among many cities/countries. For small groups or those that are physically located at the same place, it may not be the best way to go.
Also for organizations with multiple derpaments/divisions, the channels provide a natural solution to have both general communication and group-specific communication.
Read Román Josué de las Heras Torres's full review
Srinivasa Rao Boddeti | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Review Source
I am using slack in my current company and [used it at my] previous company for 3 years. It has a rich set of options, we can integrate [it with] our build tools. Some of my favorite [features] include integration with SumoLogs and alerting if there are exceptions, group chatting with the concerned department, and creating channels for groups. We can't run our regular job without Slack. I am using Slack mostly for 40% of my work. I hardly use email after using Slack.
  • Integration with other systems like Sumo Logic, GitHub
  • Group chatting and screen sharing
  • Ability to dynamically add other people to a group channel
It is a really good tool if a team is working remotely and needs to work collaboratively. It is excellent with integration to Jira and Sumo.
Read Srinivasa Rao Boddeti's full review
Scott Walker | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Review Source
We use Slack to communicate with our clients in a platform that's easy to use. Oftentimes, communication between our agency and our clients can get lost in a mess of emails, texts, and call. By keeping most communication in Slack, we're able to streamline the workflow while having a written record of most communication. Also, we integrate Slack with a lot of our outside programs like MailChimp and Jotform, that allows us to see a timeline and effect of our marketing efforts.
  • Integration of 3rd party software - We can connect Mailchimp, jotform, BigCommerce, and other programs into the Slack newsfeed, which shows a basic flow of company updates that allows people to see important information like new leads coming in and marketing emails going out.
  • Plenty of options - Slack features the threads of conversation, personal messages, company-wide chat, as well as VoIP and file-sharing capabilities. This makes it easy for everyone to use or communicate in the way in which they prefer.
  • Omnisearch - The search bar in a slack account allows you to search for everything: your personal messages, main news feed, shared files, etc. It is very convenient when you need to find all the info about a particular topic or find a file (especially if you can't remember who sent the file or how it was shared.)
  • Easy to keep track of multiple accounts - With multiple clients, we need to switch between multiple "workspaces" and Slack makes it easy to change between accounts.
  • The maximum temporary account renewal length is 14 days. It would be more convenient if it were a month/quarter/year, etc.
  • When signed-out, Slack loses the redirect cookie, so if I click a link to a workspace in an email, I have to sign in, then re-click the link. It would be better if it just redirected automatically.
Slack is great for bigger companies or for teams that don't communicate well. Also, we've found it useful as an agency to communicate with our clients. Though Slack is mostly a glorified chatroom, keeping a record of conversations allows for us to go back an make sure we haven't missed anything or check the written record against claims that may say otherwise. Plus, it helps us communicate in ways that are more comfortable for people who don't communicate as readily.
Read Scott Walker's full review
João Almeida | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Review Source
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.
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.
Read João Almeida's full review
Prad Das | TrustRadius Reviewer
January 02, 2020

Slack at an IT Campus

Score 10 out of 10
Vetted Review
Verified User
Review Source
We use "Slack" for our day to day team and individual communication. This tool is being used across the university IT campus. For any project related work or a specific Jira ticket I am able to create a private Slack chat room to have a specific discussion and to share confidential data. The important difference that I find compared to HipChat and Slack is that the later tool gives me the abilities to correct or modify my typos or delete the messages in case it there was a typo.
  • Good for individual and team communications
  • Sharing documents and images, keeping confidential data in a private chat room
  • Maintaining corporate privacy
  • Securing data, and [ability to] delete it later as the scope gets diminished.
  • Linking with a Video chat conference tool e.g. Zoom or Webex
  • Linking a message with a telephone text or voice notification for after hours support
Well Suited for:
  • Creating a private Chat room, sharing confidential data, allowing modifying/ deleting or updating previous messages.
  • Securing data and important notes used in a group chat or private room
  • Managing Messaging Thread
  • Sharing important documents and images
Read Prad Das's full review
Aisha Khamisi | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
We 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.
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.
Read Aisha Khamisi's full review
Veronika Baranovska | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
Slack 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.
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.
Read Veronika Baranovska's full review
Daniel Morse | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
Slack 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.
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.
Read Daniel Morse's full review
Mike Hilverda | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
Our 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.
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.
Read Mike Hilverda's full review
Victoria Loza | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Review Source
Slack is perfect for communication between large organizations and within different departments. I like how you can send announcements to entire departments or to individual workers.
  • Slack offers notification features for different departments.
  • Slack allows one to send private messages to administrators.
  • Slack allows one to send group messages.
  • Slack could allow for a video chat feature.
  • It needs to feature more emojis and stickers for its messages.
  • It also needs a voice messaging feature like Whatsapp.
Slack is well suited as a platform for professional announcements to large groups. It is not well suited for personal video chatting.
Read Victoria Loza's full review

Feature Scorecard Summary

Task Management (93)
Gantt Charts (33)
Scheduling (67)
Workflow Automation (77)
Mobile Access (162)
Search (161)
Visual planning tools (44)
Chat (175)
Notifications (173)
Discussions (169)
Surveys (86)
Internal knowledgebase (89)
Integrates with GoToMeeting (45)
Integrates with Gmail and Google Hangouts (83)
Integrates with Outlook (49)
Versioning (70)
Video files (133)
Audio files (129)
Document collaboration (109)
Access control (96)
Advanced security features (79)
Integrates with Google Drive (100)
Device sync (105)

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