When you open the ummadum app, you will see many communities already within the app. Find suitable communities from which you can receive a mobility budget.
Look for rides or offer them with a car. You can also ride your bike or walk. In all 4 situations, you earn ummadum points for every kilometer you sustainably travel.
On top you collect environmental tickets for each bike ride and walk and participate at challenges.
Here it gets exciting: you can redeem the collected points in all stores that accept ummadum points. Each point corresponds to 1 cent. Amazing, isn't it?