iPhone Screenshots


With this App, participants of the Critical Mass can share their GPS coordinates with others participants.
Besides that, users can send messages through the built-in chat.

Continued use of GPS running in the background can dramatically decrease battery life.

What’s New

Version 3.9.2

- Fix a bug that showed canceled events
- Adapt BikeAnnotation Size to equal the Sizes in Maps
- Fix Switching Appearance Settings
- Should fix event feature-related crashes

Ratings and Reviews

4.9 out of 5
12 Ratings

12 Ratings

Lallillu ,

Crashes after start

Is there a chance to get an update? The app crashes instantly after opening.
Changed the language from German to English. Now it works again.

jmeisl ,

My Favorit Event Of The Month

...an it starts when you find time thanks to critical mass.
thanks fellas!

App Privacy

The developer, Norman Sander, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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