![](https://images.opencollective.com/criticalmaps/16e1534/background.jpg)
Critical Maps
An open source Android and iOS App to organise the monthly Critical Mass movement around the world.
![](/static/images/collective-navigation/CollectiveNavbarIconContribute.png)
Contribute
Become a financial contributor.
Financial Contributions
Top financial contributors
Individuals
$185 USD since Mar 2020
$150 USD since May 2023
$100 USD since Feb 2024
$70 USD since Jun 2023
$26 USD since Aug 2023
$22 USD since Jul 2023
$20 USD since Oct 2019
$20 USD since Jun 2023
$20 USD since Jun 2023
$20 USD since Jun 2023
$20 USD since Jun 2023
$20 USD since Jun 2023
$20 USD since Jun 2023
$20 USD since Jun 2023
Organizations
$65 USD since Aug 2023
Critical Maps is all of us
Our contributors 29
Thank you for supporting Critical Maps.
Malte Bünz
$10 USD
Stephan Lindauer
$6 USD
Christian Bal...
$5 USD
Leonard Thomas
$5 USD
Norman Sander
Martin
$185 USD
Daniel Böttner
$150 USD
Daniel Jost
backer
$70 USD
GitHub Sponsors
$65 USD
FDP Zurich
$26 USD
![](/static/images/collective-navigation/CollectiveNavbarIconBudget.png)
Budget
Transparent and open finances.
Credit from GitHub Sponsors to Critical Maps •
$272.49 USD
$775.49 USD
$503.00 USD
$447.72 USD
![](/static/images/collective-navigation/CollectiveNavbarIconAbout.png)
About
Our team
Malte Bünz
Stephan Lindauer
Christian Bal...
Leonard Thomas
Norman Sander