Motion 💓

This -centric open-source animation library looks promising.

👉 Motion on GitHub

Motion is an animation engine for gesturally-driven user interfaces, animations, and interactions on iOS, macOS, and tvOS.

I’ve been a little skeptical of open-source animation platforms since I had to toss out one app and then another as cocos2d morphed into cocosd2x and broke everything. Damn that x! But still, this looks cool. 👆

Via iOS Dev Weekly.