CreativeSwift
Creative Coding in Swift.
Preview:

UIKit is supported:

Github repo
Problem
I love Swift, but there aren't enough creative coding libraries in this ecosystem, so I built one.
Technical Details
- Implemented in Swift.
- Under the hood, it uses CADisplayLink to call the draw function 60 times per second (this rate is configurable).
- Unlike other creative coding libraries, it provides a concise API for building UIKit elements such as buttons and labels.