This was a game inspired by Flappy Bird, written in Objective-C. This is my first app that was able to achieve some degree of success on the App Store, achieving a small amount of revenue from in-app advertisements.
While low in quality, it was large in the amount I learnt about iOS development, especially so early on in my programming journey. I'd encourage anyone starting out programming just to try and immitate a simple game. It gives you a crystal clear goal, you learn stuff you'd never even think of yourself and the result is really fun! (and iOS SpriteKit is a great place to start)