Back4App is a parse server hosting platform for apps.

B4X is a suite of rapid application development IDEs that allows the creation of applications.

Repro is a mobile marketing platform.

PubNub is a global Data Stream Network (DSN) and realtime infrastructure-as-a-service.

Appaloosa Store provides a simple and secure enterprise app store.

Heroic Labs is an open-source realtime server for apps and games.

Infinite Monkeys is a self-service platform that allows users to create native apps for iPhone, Android and HTML5 mobile websites with no coding knowledge.

Appsee is an app analytics platform that offers a unique and powerful analytics solution, enabling you to optimize the user experience in your app.

Lightstreamer is a web-based asynchronous messaging project, implementing the WebSocket protocol.

Webix UI is a JavaScript Library for cross-platform app development with HTML5 JavaScript widgets.

libGDX is a free and open-source game-development application framework.