Update: dropped 5 star rating to 1star. App will not sync. I have it on Android and iPad,and neither one of them will sync to the server. App store shows 8 months since any updates. Would not have paid for premium if I knew it wasn't going to be maintained. Original review: I wanted to make something like this myself, but they've already done a great job. I feel more obligated to the daily habits I'm trying to build, and it's great that it tracks my completion streaks.