GoodAPI Plant Trees Clean Seas

I installed a few apps, but I stuck with Sprout because it was, in my opinion, the most simple and straightforward one I could find. It is designed very well. The setup is literally just a couple of minutes and you really cannot go wrong. Saif, the app maker, answered a couple of additional questions I had super fast. Also, the transparency of how the tree planting program works is really great! I highly recommend giving this one a try!