Slack vs. Zulip

Overview
ProductRatingMost Used ByProduct SummaryStarting Price
Slack
Score 9.0 out of 10
N/A
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. Slack was acquired by Salesforce in December 2020. The product is free to use, and also has paid plans with more features and greater controls. The…
$8.75
per month per user
Zulip
Score 8.1 out of 10
N/A
Zulip is a team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way. Teams of all sizes can use Zulip, and Zulip is 100% open-source enterprise-grade software, self-hosted or in the cloud.
$3.50
per month per user
Pricing
SlackZulip
Editions & Modules
Free
$0
Pro
$7.25*
per month per user
Business+
$12.50*
per month per user
Enterprise
Contact Sales
Zulip Cloud Free
$0
per month per user
Zulip Free
$0
per month per user
Zulip Basic
$3.50
per month per user
Zulip Cloud Standard
$8
per month per user
Zulip Business
$8
per month per user
Zulip Cloud Plus
$12
per month per user
Offerings
Pricing Offerings
SlackZulip
Free Trial
YesNo
Free/Freemium Version
YesYes
Premium Consulting/Integration Services
NoYes
Entry-level Setup FeeNo setup feeNo setup fee
Additional Details*Per active user, per month, when paying once a year. Pro is $8.75 USD per active user when paying month to month. Business+ is $15.00 USD per active user when paying month to month.Discount available for annual pricing.
More Pricing Information
Community Pulse
SlackZulip
Considered Both Products
Slack
Chose Slack

More Intuitive & Simpler Interface – Slack is easier to set up and navigate.
Faster Adoption – No need for complex Microsoft ecosystem integration.
Zulip

No answer on this topic

Features
SlackZulip
Project Management
Comparison of Project Management features of Product A and Product B
Slack
7.9
625 Ratings
2% above category average
Zulip
10.0
1 Ratings
25% above category average
Task Management7.7428 Ratings00 Ratings
Gantt Charts6.961 Ratings00 Ratings
Scheduling7.8361 Ratings00 Ratings
Workflow Automation8.1394 Ratings00 Ratings
Mobile Access9.4598 Ratings10.01 Ratings
Search8.3605 Ratings10.01 Ratings
Visual planning tools7.4273 Ratings00 Ratings
Communication
Comparison of Communication features of Product A and Product B
Slack
8.8
633 Ratings
10% above category average
Zulip
10.0
1 Ratings
22% above category average
Chat9.6632 Ratings10.01 Ratings
Notifications8.8629 Ratings10.01 Ratings
Discussions9.2617 Ratings10.01 Ratings
Surveys8.1410 Ratings00 Ratings
Internal knowledgebase7.8409 Ratings00 Ratings
Integrates with GoToMeeting8.9110 Ratings00 Ratings
Integrates with Gmail and Google Hangouts8.7182 Ratings00 Ratings
Integrates with Outlook8.9120 Ratings00 Ratings
File Sharing & Management
Comparison of File Sharing & Management features of Product A and Product B
Slack
8.4
600 Ratings
5% above category average
Zulip
10.0
1 Ratings
22% above category average
Versioning8.2324 Ratings00 Ratings
Video files8.3538 Ratings10.01 Ratings
Audio files8.5525 Ratings10.01 Ratings
Document collaboration8.0426 Ratings10.01 Ratings
Access control8.3409 Ratings00 Ratings
Advanced security features8.3360 Ratings00 Ratings
Integrates with Google Drive9.0211 Ratings00 Ratings
Device sync9.0452 Ratings00 Ratings
Best Alternatives
SlackZulip
Small Businesses
Stackby
Stackby
Score 9.0 out of 10
Stackby
Stackby
Score 9.0 out of 10
Medium-sized Companies
Troop Messenger
Troop Messenger
Score 9.8 out of 10
Troop Messenger
Troop Messenger
Score 9.8 out of 10
Enterprises
HCL Connections
HCL Connections
Score 9.0 out of 10
HCL Connections
HCL Connections
Score 9.0 out of 10
All AlternativesView all alternativesView all alternatives
User Ratings
SlackZulip
Likelihood to Recommend
9.2
(628 ratings)
7.0
(1 ratings)
Likelihood to Renew
10.0
(25 ratings)
-
(0 ratings)
Usability
9.0
(248 ratings)
8.0
(1 ratings)
Availability
10.0
(2 ratings)
-
(0 ratings)
Performance
10.0
(2 ratings)
-
(0 ratings)
Support Rating
9.9
(68 ratings)
-
(0 ratings)
Implementation Rating
8.8
(5 ratings)
-
(0 ratings)
Configurability
10.0
(2 ratings)
-
(0 ratings)
Contract Terms and Pricing Model
10.0
(1 ratings)
-
(0 ratings)
Ease of integration
9.2
(2 ratings)
-
(0 ratings)
Product Scalability
10.0
(1 ratings)
-
(0 ratings)
Professional Services
10.0
(1 ratings)
-
(0 ratings)
Vendor post-sale
10.0
(1 ratings)
-
(0 ratings)
Vendor pre-sale
10.0
(1 ratings)
-
(0 ratings)
User Testimonials
SlackZulip
Likelihood to Recommend
Salesforce
Slack is great for tracking commits to new coding projects. You can take parts of code that still need to be implemented later and easily search through the history of comments if there is something that goes wrong with a code commitment. It can be difficult for people that only like Teams to adjust to a new platform if you are using both to communicate.
Read full review
Zulip
Zulip is great at what it does, and I enjoy using this product every day, but to me it serves as an alternative to the bigger names in instant communication. If they had more features and offered a simpler profile layout that was easier to look at, my rating would be higher.
Read full review
Pros
Salesforce
  • Huddles Run smoothly without any interferences.
  • Smooth individual calls quick and easy without any interruptions.
  • seamless notifications across multiple devices
  • The ability to easily tag a team member to urgently attend to a specific escalation.
  • Slack being user friendly and able to integrate easily with other platforms and apps.
  • How to easily open up different channels for different escalations and needs.
  • a safe direct messaging option.
Read full review
Zulip
  • Letting you send direct messages
  • Letting you customize each message like adding bullet points and hyperlinks
  • Keeping each thread organized
Read full review
Cons
Salesforce
  • Would love a better integration with GitHub. For example, notifications when your PR is updated, when review is requested, @-mention in comments, etc.
  • Improved "Later" tab, for example the ability to create to-do lists or making the "Later" tab into a more powerful to-do list (annotate items with notes)
  • More powerful integrations, e.g. Google Calendar could render a calendar view within Slack, rather than sending the daily schedule
Read full review
Zulip
  • It would be nice to see a person's title under their name when you click their profile
  • It would be nice to see a person's direct report when you click their profile
  • Including more personalized information in the quick view of a profile would be nice
Read full review
Likelihood to Renew
Salesforce
To be more transparent, I give 10 because Slack serves our collaboration needs. It provide us a good platform for team communication relaying important update within the company, it has even mobile app where you can install in your phone to monitor any updates within that team that needs your immediate attention and intervention.
Read full review
Zulip
No answers on this topic
Usability
Salesforce
My rating was 7. Its intuitive interface and user-friendly features like channels, threads, and integrations make it excellent for team communication and onboarding. However, its usability is held back by the resource-intensive desktop app and cluttered feeling in large workspaces. The mobile app's performance and unreliable notifications have also been noted as weaknesses.
Read full review
Zulip
Again, I would like to see more personalized features pertaining to the quick view you get when you click on someone's profile within the software. I do like how it offers a desktop app as well as web browser support. I also like the customizing of notification sounds, there's a lot to choose from which is ideal.
Read full review
Reliability and Availability
Salesforce
Yes, the app works 24/7. I don't even recall having any period that we could not use since the implementation. Even the maintenance periods are barely noticeable and our work is not impacted by it when it happens.
Read full review
Zulip
No answers on this topic
Performance
Salesforce
Slack is a soft app, we don't have many issues with it. I recall one or two people complaining about something during our usage period, but I didn't have a bad experience. When the app is slow, usually the problem is with my computer or my internet. The app works just fine.
Read full review
Zulip
No answers on this topic
Support Rating
Salesforce
Whenever I've had to troubleshoot an issue with Slack (which, to be honest, has not happened very often), their online documentation has been easy to locate, easy to understand, and effective in resolving my issue. Slack's ever-growing popularity also means that there's a large community of practice out there that can be depended upon.
Read full review
Zulip
No answers on this topic
Implementation Rating
Salesforce
I was not part of the implementation team, but I recall being 100% happy and excited to learn and use a new tool. I'm still am to be honest.
Read full review
Zulip
No answers on this topic
Alternatives Considered
Salesforce
I like Slack better than ClickUp, because I would spend 30-60 minutes a day updating my ClickUp tasks. The way ClickUp was used was very micromanaging. I billed by the hour, so I was willing to put in the time to alert the boss what tasks I was working on.
One of my jobs used Hive - I mostly just ran it in the background in case anyone messaged me. I did not use it often.
Read full review
Zulip
I did not have a say in my company choosing Zulip as their main communication channel, but I can understand why they chose Zulip over any other program. It does house different discussion topics better than Teams does in my opinion, and you're able to easily add subtopics underneath them.
Read full review
Return on Investment
Salesforce
  • Slack has been incredibly helpful in connecting various tech apps and ecosystems, creating a more streamlined and responsive process.
  • Slack has made it significantly easier to communicate with our team members across multiple time zones, creating a more engaging environment for our all-remote team.
Read full review
Zulip
  • I don't feel suited to answer this as I have been with my organization for less than 2 months.
Read full review
ScreenShots