The Android platform provides a framework API that applications can use to interact with the underlying Android system. The framework API consists of: A core set of packages and classes. A set of permissions that applications can request, as well as permission enforcements included in the system

The Facebook SDK for Android is the easiest way to integrate your Android app with Facebook's platform. The SDK provides support for Login with Facebook authentication, reading and writing to Facebook APIs and support for UI elements such as pickers and dialogs.

Flurry Analytics provides an incredible amount of actionable intelligence into how and where people are using your app. You can quickly identify your most engaged and valuable users by grouping them on key characteristics such as demographics, location, language preference, and usage of select features in your app.

FMOD Studio is the professional audio content creation tool, for creating interactive sound and music for games and other types of applications FMOD Studio programmer’s API is the interface for programmers to load FMOD Studio projects and play them back in realtime.

Google Play services powers a broad set of SDKs on Android to help you build your app, enhance privacy and security, engage users, and grow your business. These SDKs are unique in that they only require a thin client library to be included in your app, as shown in figure 1. At runtime, the client library communicates with the bulk of the SDK's implementation and footprint in Google Play services.

An easy-to-use, cross platform Facebook plugin from http://www.neatplug.com.

prime31 is a San Diego based, full service firm that creates top quality mobile games, applications and tools for small and large businesses.

The Vuforia platform, a product of Qualcomm Technologies, Inc. and its subsidiaries, enables augmented reality (AR) app experiences that are best in class and creative beyond definition. These experiences reach across most real world environments, giving mobile apps the power to see. Vuforia is a software platform that uses top-notch, consistent, and technically resourceful computer vision-based image recognition and offers a wide set of features and capabilities, giving developers the freedom to extend their visions without technical limitations. With support for iOS, Android, and Unity 3D, the Vuforia platform allows you to write a single native app that can reach the most users across a wide range of smartphones and tablets. The Vuforia SDK is a product of Qualcomm Austria Research Center GmbH.

Twitter4J is an unofficial Java library for the Twitter API. With Twitter4J, you can easily integrate your Java application with the Twitter service.

Create the games you love with Unity Unity is a game development ecosystem: a powerful rendering engine fully integrated with a complete set of intuitive tools and rapid workflows to create interactive 3D and 2D content; easy multiplatform publishing; thousands of quality, ready-made assets in the Asset Store and a knowledge-sharing community. For independent developers and studios, Unity’s democratizing ecosystem smashes the time and cost barriers to creating uniquely beautiful games. They are using Unity to build a livelihood doing what they love: creating games that hook and delight players on any platform