My Android location sharing app[1], while still barely known, has generated a lot of great feedback and personal "thank you" emails. It's barely made any money

My Android location sharing app[1], while still barely known, has generated a lot of great feedback and personal "thank you" emails. It's barely made any money (40€ in a year or so), but the great feedback makes it all good. [1] https://graticule.link/ https://graticule.link/