The Habbits app on Android is good for a couple of reasons.
Firstly it is well layed out, behaves as expected, and has a useful set of features, without trying to “flex” in any particular way.
Secondly it is open source and maintained by what appear to be a number of sincere, skilled, and humble developers whom are trying to put something “good” out there.
Finally, it works.
But hang on, what is it?
It is habbit recording app. You give it the name of some habbit, tell it how often you would like to do it, and it will (optionally) reminding you, let you record when you do it, and show you little charts of how your commitments are going.