Indeed, it's a solved problem on iOS too! This story isn't about someone releasing a new app into a desolate marketplace without any calculator apps (and hey, t

Indeed, it's a solved problem on iOS too! This story isn't about someone releasing a new app into a desolate marketplace without any calculator apps (and hey, turn that iOS default calculator sideways for some fun), it's a human interest story about someone releasing a new app into an already-crowded market with a slightly new twist, and finding success there.