Group Challange

tingtongabc123

We had an idea to have a step challenge between classes at our uni to get people moving and help some to get the first step to a healthier life. We found some apps like DailyEndorphin which could make it possible but it is not free and poor students are just unable to pay that. There is a trial version but it is limited to 30 participants. Maybe someone knows how we could compete for example 3-4 groups 50 ppl each against each other in steps count? Any apps or suggestions?