What's the difference between Polymer and AngularJS? This is an essential question, because both are rich application frameworks and both are created in Google. Well, the popularity of AngularJS is increasing dramatically! It is probably even more popular now, than the BitCoin was when it costed around $1000 per BTC. Look at the closest competitors, Backbone.js and Knockout, they not just didn't take off, but are not standing on the ground now. Also I am giving a respect to them as they were fundamental part of the web evolution!