Cross-Platform (Hybrid)

Sencha

A cross-platform mobile web application framework based on HTML5 and JavaScript which allows to create native-looking universal mobile apps. Supports AJAX technology, animation, work with DOM, implementation of tables, tabs, event handling and all other innovations of Web 2.0.

Titanium

A framework for creating beautiful native apps across different mobile devices and OSs. It includes an open source SDK with over 5,000 device and mobile operating system APIs, Studio, a powerful Eclipse-based IDE, Alloy, an MVC framework and Cloud Services for a ready-to-use mobile backend.

Xamarin

A mobile app development platform for building native iOS, Android & Windows apps from a common C#/.NET code base. The platform consists of Xamarin.iOS, Xamarin.Android, Xamarin.Mac, Xamarin Test Cloud, and HockeyApp.

Xamarin Studio

The IDE used for creating native mobile and desktop apps on the Xamarin platform. Visual Studio is replacing Xamarin Studio and has all the features: adds cloud and web development, and contains improvements for cross-platform mobile development.

Xamarin.Forms

A cross-platform UI toolkit that allows developers to easily create native user interface layouts that can be shared across Android, iOS, and Windows Phone. Xamarin provides two ways to build great, native apps. Xamarin.Forms maximizes code sharing, while Xamarin.iOS and Xamarin.Android provide direct access to platform-specific APIs.

Mobile applications

Mobile applications (also known as mobile apps) are software programs developed for mobile devices such as smartphones and tablets.