Critical Maps
Critical Maps is a free, open-source maps and navigation app for Android. Critical mass location sharing and chat. It has 154 GitHub stars and is released under the Apache-2.0 license, and you can install it from F-Droid and Google Play.
github.com/criticalmaps/criticalmaps-android (opens in a new tab)
About Critical Maps
This app tracks your location and shares it via a map with all other participants of the critical mass bicycle protest. You can use the chat to communicate with all other participants. Location sharing and chat relies on criticalmaps.net. Location tracking is always active while using the app.
Privacy and F-Droid
F-Droid builds Critical Maps from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
- Relies on a non-free network service
- Depends on the developer's own network service
- Tracks or reports your activity
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What is Critical Maps?
Critical Maps is a free, open-source maps and navigation app for Android. Critical mass location sharing and chat. It has 154 GitHub stars and is released under the Apache-2.0 license, and you can install it from F-Droid and Google Play.
Is Critical Maps free and open source?
Yes. Critical Maps's source code is public on GitHub under the Apache-2.0 license, which is OSI-approved or FSF-free. F-Droid flags these anti-features on its latest build: relies on a non-free network service; depends on the developer's own network service; tracks or reports your activity.
How do I install Critical Maps?
You can install Critical Maps from F-Droid (package de.stephanlindauer.criticalmaps) and from Google Play; the links are on this page. Its GitHub repository also publishes releases (latest: 3.1.3).
Is Critical Maps still maintained?
The repository's most recent commit was on Jun 21, 2026. Its F-Droid listing was last updated on Jun 22, 2026. appsgit only lists apps whose repository had a commit in the last six months.