Atmosphere vs Guice: What are the differences?

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; Guice: A lightweight dependency injection framework for Java. It is an open-source software framework for the Java platform. It provides support for dependency injection using annotations to configure Java objects. It embraces Java's type safe nature, especially when it comes to features introduced in Java 5 such as generics and annotations.

Atmosphere and Guice can be categorized as "Frameworks (Full Stack)" tools.

Atmosphere is an open source tool with 3.35K GitHub stars and 720 GitHub forks. Here's a link to Atmosphere's open source repository on GitHub.