Atmosphere vs MEAN: What are the differences?

What is Atmosphere? Realtime Client Server Framework for the JVM, supporting WebSockets and Cross-Browser Fallbacks Support. The Atmosphere Framework contains client and server side components for building Asynchronous Web Applications. The majority of popular frameworks are either supporting Atmosphere or supported natively by the framework. The Atmosphere Framework supports all major Browsers and Servers.

What is MEAN? A Simple, Scalable and Easy starting point for full stack javascript web development. MEAN (Mongo, Express, Angular, Node) is a boilerplate that provides a nice starting point for MongoDB, Node.js, Express, and AngularJS based applications. It is designed to give you a quick and organized way to start developing MEAN based web apps with useful modules like Mongoose and Passport pre-bundled and configured.

Atmosphere and MEAN belong to "Frameworks (Full Stack)" category of the tech stack.

"Cross-Browse" is the primary reason why developers consider Atmosphere over the competitors, whereas "Javascript" was stated as the key factor in picking MEAN.

Atmosphere and MEAN are both open source tools. MEAN with 11.8K GitHub stars and 3.57K forks on GitHub appears to be more popular than Atmosphere with 3.34K GitHub stars and 720 GitHub forks.