Framer vs Pop: What are the differences?
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.
Framer and Pop can be categorized as "Mobile Prototyping & Interaction Design" tools.
Framer and Pop are both open source tools. It seems that Pop with 19.7K GitHub stars and 2.9K forks on GitHub has more adoption than Framer with 5.45K GitHub stars and 506 GitHub forks.