Foundation for Apps vs Primer: What are the differences?
Foundation for Apps: Angular-powered framework for building powerful responsive web apps, from your friends at ZURB. Foundation for Apps is a framework you can use to build better, more polished single-page web applications that work across many devices. We’ve taken what we’ve learned from building the original Foundation framework to build an entirely new framework just for web apps; Primer: CSS toolkit and guidelines that power GitHub. Primer is the basecoat of GitHub, made by nerds just like you who share a passion for HTML and CSS.
Foundation for Apps and Primer can be categorized as "Front-End Frameworks" tools.
Foundation for Apps and Primer are both open source tools. It seems that Primer with 8.42K GitHub stars and 621 forks on GitHub has more adoption than Foundation for Apps with 1.65K GitHub stars and 236 GitHub forks.