You can earn points two ways with Shopkick. You can spend money to make money (never one I recommend) or you can start hunting for products in store.
Poshmark is a nice little app, but it's really more work than I'm willing to do.
Mobee is a completely legit and fun app, but boy does it fly its bees ragged. It really puts you to work if you want those honey points!
You pay ThredUp to look at your clothes. You pay ThredUp to sell your clothes. You pay ThredUp to get rid of the ones it doesn't want. Where do you make money?
A disclaimer for this review, you're not going to get rich or even make good money off of FitPlay, but I'm still going to give it a thumbs up.