Microsoft Teams
Slack
ZulipPick
Service26.1k
Team chat organised by topic threads, fully open source, hosted for you or on your own server.
- Tracking not stated
- Open source
- Provider can read it
- Account needed
- Free plan
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
Nextcloud Talk
Self-hosted in Team chat, Video calls
Chat, calls and screen sharing built into Nextcloud, running on a server you or your organisation control.
Privacy passport
4 of 5 checks- No trackingYesNo ads and no third-party trackers or analytics.
- Open sourceYesApps and server code are public, so anyone can check them.
- Only you can read itYour serverYour data lives on a server you run.
- No accountNeededYou need an account to use it.
- FreeYesFree to use.
Where it stands among 11 team chat apps
No tracking
Yes
Partly
No
Not stated
Open source
Yes
Partly
Only you can read it
Yes
Partly
No
No account
Yes
No
Free
Yes
No
A private swap for
Other team chat apps
StoatPick
Service768
Open-source community chat with servers, voice and video channels, formerly known as Revolt.
- No tracking
- Open source
- Provider can read it
- Account needed
- Free
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
ThreemaAudited
App1k
Swiss messenger you buy once; it works with a random Threema ID, no phone number or email required.
- No tracking
- Partly open
- End-to-end encrypted
- No account
- Paid
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
ElementAudited
App13.6k
Chat app for the open Matrix network: encrypted private chats and rooms, and you can pick or run your own server.
- Minimal tracking
- Open source
- Partly encrypted
- Account needed
- Free plan
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
WireAudited
App1.2k
Encrypted messenger and team workspace with calls and file sharing, built on the MLS standard for group encryption.
- Minimal tracking
- Open source
- End-to-end encrypted
- Account needed
- Free plan
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
Mumble
App8.4k
Low-latency, encrypted voice chat popular with gaming groups; join any server or run your own.
- No tracking
- Open source
- On your server
- No account
- Free
- Android
- iPhone
- Mac
- Windows
- Linux