228K reviews
Content rating
Everyone
50M+
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About this app

Slack brings team communication and collaboration into one place so you can get more work done, whether you belong to a large enterprise or a small business. Tick off your to-do list and make progress on your projects by bringing the right people, conversations, tools and information you need together. Slack is available on any device, so you can find and access your team and your work whether you’re at your desk or on the go.

Use Slack to:
• Communicate with your team and organise your conversations by topic, project or anything else that matters to your work
• Message or call any person or group within your team
• Share and edit documents and collaborate with the right people, all in Slack
• Integrate the tools and services you already use into your workflow, including Google Drive, Salesforce, Dropbox, Asana, Twitter, Zendesk and more
• Easily search a central knowledge base that automatically indexes and archives your team’s past conversations and files
• Customise your notifications so you stay focused on what matters

Scientifically proven (or at least rumoured) to make your working life simpler, more pleasant and more productive. We hope you’ll give Slack a try.

Having trouble? Please contact feedback@slack.com
All your team communication in one place
Updated on
9 Nov 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App info and performance
  • This app may collect these data types
    Personal info, Photos and videos and 6 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

222K reviews
Shou A-jah
30 July 2026
Update: the desktop (web) app does not show all the send messages in the activities table. Anything sent, should show. Also, when you set a reminder, or schedule a message, it only shows the numerical date as if someone will remember off top the day of week as well. Lastly, if you upload attachments on the mobile device, the web app does not display those attachments even when you have a connection.
20 people found this review helpful
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SLACK TECHNOLOGIES L.L.C.
25 November 2022
Sorry to hear your app isn't marking messages as read. When you have a moment, please navigate to your app’s "You" tab > "Preferences" > "Send Feedback" to flag this with our support team. We’ll be happy to help!
Korinne M Jackman
7 May 2022
Ok, but not "compatible" with all my devices. It will no longer work on my tablet, not even within a browser. I'm stuck using it in my phone or on my PCs/Chromebook. That's inconvenient when at conferences; I don't want to have to lug a laptop everywhere. Otherwise, the app (on my phone) is adequate. I can do what I need to do, even though it's a small screen. The issues, however, have prompted my team to transition to Discord.
237 people found this review helpful
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SLACK TECHNOLOGIES L.L.C.
7 May 2022
We’d be interested in hearing more about this issue. When you have a moment, please navigate to your app’s "You" tab > "Preferences" > "Send Feedback" to flag this with our support team. We’ll be happy to help!
Julie Williams
12 October 2022
I don't get it. Why fix (break) what wasn't broken?! Before, I used to be able to start a post, come back to it, and everything was there. Add a photo to a post? No problem. Now when I leave the app & come back, my posts disappear from the channels I wrote them in & automatically get transferred to the Drafts channel. What's even more maddening is without even leaving the app, if I want to take a photo to add to a post, once I take the photo, the post has likewise disappeared, moved to Drafts.
87 people found this review helpful
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SLACK TECHNOLOGIES L.L.C.
12 October 2022
Hi Julie, sorry for the trouble. We’d be interested in hearing more about this issue. When you have a moment, please reach out to us at feedback@slack.com to flag this with our support team. We’ll be happy to help!

What's new

Bug fixes
• Now you see them, now you don't! Old notification banners were sometimes pulling a vanishing act when a new one came in. We fixed it so they stick around long enough to, you know, notify.



Content rating
Everyone
Users interact
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App support

About the developer
Slack Technologies L.L.C
feedback@slack.com
415 Mission St FL 3 San Francisco, CA 94105-2504 United States
+1 812-994-1053

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