I use actifit about a month. It's a great motivating app that rewards you with actifit tokens and via steemit upvotes. The app can track your moves accurately but not always. If you want to run it on background make sure to enable aggressive background tracker. Yes, l always got upvotes from actifit according to my activity score. In the future you'll be able to buy fitness products or just convert actifit tokens to cryptocurencies, fiat. It can take a while because of upcoming SMTs.