Avocado vs Pop: What are the differences?
Developers describe Avocado as "An interaction design toolbox". Avocado is an open source interaction design toolbox built by IDEO. It enables designers to make quick interactive prototypes without writing a line of code. Built on top of Facebook's Origami framework, Avocado provides ready-to-use patches that can be easily combined to create fully-customized prototypes. Official announcement: http://labs.ideo.com/2014/05/27/avocado/. On the other hand, Pop is detailed as "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.
Avocado and Pop can be primarily classified as "Mobile Prototyping & Interaction Design" tools.
Pop is an open source tool with 19.7K GitHub stars and 2.9K GitHub forks. Here's a link to Pop's open source repository on GitHub.