4,7
159K reviews
10M+
Downloads
Content rating
PEGI 3
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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 [email protected]
Updated on
12 Nov 2025

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

4,7
154K reviews
Jonathon Artus
28 August 2024
Update 18 months after my original 1-star review. Still terrible. Still practically unusable, particularly with a mobile internet connection. Messages fail to send, or come through in a different order. The app hangs trying to switch conversations, or fails to find channels. And then it doesn't mark conversations as read after reading. Seriously, this is an embarrassment.
69 people found this review helpful
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SLACK TECHNOLOGIES L.L.C.
28 August 2024
Hello, We're sorry to hear about the trouble and we'd be interested in hearing more about this issue. When you have a moment, please tap on your profile picture on the top of the screen > "Preferences" > "Send Feedback" to flag this with our support team and provide some logs we'll need to investigate. We'll be happy to help!
GT A
19 March 2024
Worst app ever used! If I did not have to use it for work, I would not bother. Installed on my mobile, and it worked OK,for a whole. Then, it stopped updating. Unloaded it and reinstalled it again, 6 TIMES, and everything time I could not get past the login email address to be sent an email to get an email for my instant access. Can I give it more than one star?!?!
32 people found this review helpful
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SLACK TECHNOLOGIES L.L.C.
19 March 2024
We'd be interested in hearing more about this issue. When you have a moment, please tap on your profile picture on the top of the screen > "Preferences" > "Send Feedback" to flag this with our support team and provide some logs we'll need to investigate. We'll be happy to help!
Elliot Blackburn
22 October 2024
So. Bloody. Slow. It feels like everything is disconnected. Receive a notification, open the app, 45 mins later the message is finally visible, another 2 hours later and the notification finally clears. Why not pull the new message when the notification is received, and if you can't why does the request take so long? And why can't the notification in the app UI clear as soon as the message is seen, there's no need to wait for some round trip to a server to deal with that.
23 people found this review helpful
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SLACK TECHNOLOGIES L.L.C.
22 October 2024
Please navigate to your app's "You" tab > "Notifications" > "Troubleshoot Notifications". Once the tests are complete, tap the three dots in the upper right corner of the screen and select "Send Report" to flag your results with our support team for further help.

What's new

Bug fixes
• We’ve tinkered with the internal workings and polished some rough edges. The app is now better than it was.