You just walking and we plant an oak tree as soon as you walk 1 million steps. Steps are calculated in the mobile application. For the development of this application we collect funds. We already have acorns and a place to grow oak trees.
There is one condition. You have to go 1 million steps before all the people who started on the same day as you. If someone defeats you in this Eco Challenge, we will refund you 10% of your cashback steps.