Price: Free (99c to unlock Pro Mode)
Platforms: iOS Universal
Polygen is an anomaly on my iPhone. It only has two buttons and I hardly ever use it. Why would it be my app of the week? It serves a functionality that I have long required outside designers and graphic artists to do, with the same results. It creates random polygon wallpapers for your iOS devices. Polygon art has long been a favourite of mine and so this app is perfect for me.
Unlocking the app with a 99c in-app purchase allows you to get rid of the ads and customize colours and patterns which is completely worth it.