I totally understand your frustrations, I have some of my own as well. But I honestly take what I can get with gratitude since I already go on morning walks! I just know to give my phone an extra charge during the day although I do have an Apple Watch and they balance out so its not draining too much of my battery too soon.
This app either is for you or it isn't :)
To be honest with you I have made more by spreading the word but still not enough to get anything as of right now. I just really love the concept and motivation I get from it!