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. Check off your to-do list and move your projects forward 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 organize your conversations by topics, projects, 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 into your workflow, the tools and services you already use 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
• Customize your notifications so you stay focused on what matters

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

What's New

Version 3.45.1

What’s New
• If you're having trouble with notifications, a new tool (found under Settings -> Notifications -> Troubleshoot Notifications) can help diagnose problems. In fact, opening the tool alone can occasionally fix problems. Which seems like wizardry, but is, in fact, technology.

Bug Fixes
• Fixed: Sometimes, opening a notification from a thread would cause older messages in the thread to vanish (paf!) and only the most recent message to appear (ta-da!). A kind of magic, but not a good kind. So we fixed it.
• Fixed: Usually-clickable links inside tweets became unclickable when certain apps were set as preferred ones for Twitter links. Now, they're clickable once more.

Ratings and Reviews

4.6 out of 5

192 Ratings

192 Ratings

Editors' Notes

Teamwork and communication made easy.

Such a wonderful tool!


Love the simplicity of this tool. It has made lives of our small start up so much easier! Love the colors and look. It’s so hip and contemporary. There isn’t a thing I don’t like about it as of now!! 🌸

Why no CallKit support?

Ashish raina

This app is great however it has the callkit feature missing from it. Every calling app supports the callkit feature. It would be great if this feature is implemented in this application too. It is very time consuming to first unlock the phone and then answer the call


Slack Technologies, Inc.
161.2 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.
English, French, German, Japanese, Spanish
Age Rating
Rated 4+
© 2017 Slack Technologies


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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