I am an iOS developer at iZettle in Stockholm.
Color Sea is my long term personal project that I work on from time to time. It is a game written in Swift and it is built on Appel's SpriteKit. I was curious about game development for iOS and started this as a hobby project to do something different from the daily developer work. I got some very positive feedback on it that makes me proud of this game.
Color Sea is released to the AppStore and is free to play so if you tried it your feedback is very welcome! Read more about Color Sea here.