4.6
155K reviews
10M+
Downloads
Content rating
USK: All ages
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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
Updated on
21 Oct 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

4.6
150K reviews
danny zecevic
21 May 2025
Major performance issues after update. App was easily 10/10 for years. Some update months ago and it has been unusable. I read thru all the complaints and responses in the reviews here - delete and redownlaod the app, clear the cache, wipe my phone and restart anew all of it. Im running a Galaxy S21 Ultra - specs should be fine. Chats fail to load in part or entirely Cannot find chat groups in the list Search cannot find chat groups Messages fail to send ... Heartbreaking
89 people found this review helpful
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SLACK TECHNOLOGIES L.L.C.
22 May 2025
Yikes! We're very sorry about the frustrating experience. We'll get our experts to dig into this for you. Please tap your profile picture, then head to "Preferences". Under "Troubleshooting", tap "Send feedback and logs" to generate a report for us. Our Android team will reply via email as soon as possible.
Ian Kirkpatrick
29 May 2025
I frequently see that there is an unread message, but everything is ready. also integrations periodically stop working. resetting the cache temporarily fixed the issues, but then they return and I shouldn't need to reset the cache in the first place. it seems like there's very low android support or not many people at slack actually using the app on Android.
54 people found this review helpful
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SLACK TECHNOLOGIES L.L.C.
29 May 2025
Hello! 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" or please reach out via email to feedback@slack.com to flag this with our support team to investigate. We'll be happy to help!
Daniel Veihelmann
18 June 2020
I use Slack on my desktop (browser) and the mobile app, and it's very frustrating that notifications aren't in sync anymore. My phone still shows notifications that I read hours ago in the browser. I know that this affects our entire team (not sure about iOS). Please fix this, this used to work in the past. I had mixed feelings about the new UI, but I'm actually fine with it now. (Though not sure if it's a good idea to have a non-standard navigation for the average user...)
48 people found this review helpful
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SLACK TECHNOLOGIES L.L.C.
18 June 2020
We are sorry to hear about these issues and would be interested to look into this workspace for you. Would you mind dropping us an email to feedback@slack.com?

What's new

Bug fixes
• All bugs that were fixed in this release were too small for the eye to see or too fiddly for human words to describe. Nevertheless, work was done, things tinkered with and the app became subtly better.