Lottie vs Pop: What are the differences?
What is Lottie? Easily add high-quality animation to any native app (by Airbnb). Lottie is a mobile library for Android and iOS that parses Adobe After Effects animations exported as json with Bodymovin and renders them natively on mobile!.
What is Pop? The extensible iOS and OS X animation library behind Facebook's Paper. Pop is an extensible animation engine for iOS and OS X. In addition to basic static animations, it supports spring and decay dynamic animations, making it useful for building realistic, physics-based interactions. The API allows quick integration with existing Objective-C codebases and enables the animation of any property on any object. It's a mature and well-tested framework that drives all the animations and transitions in Paper.
Lottie and Pop can be categorized as "Mobile Prototyping & Interaction Design" tools.
Lottie and Pop are both open source tools. Lottie with 26K GitHub stars and 4.08K forks on GitHub appears to be more popular than Pop with 19.7K GitHub stars and 2.9K GitHub forks.