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

Crashlytics helps collecting, analyzing and organizing app crash reports

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.

The Google Analytics SDK for Android makes it easy for native Android developers to collect user engagement data from their applications. Developers can then use the Google Analytics reports to measure: The number of active users are using their applications. From where in the world the application is being used. Adoption and usage of specific features. Crashes and exceptions. In-app purchases and transactions. And many other useful metrics... The Google Analytics SDK also gives you the tools to monitor the success of mobile marketing campaigns. Connect user interactions with paid ads, Google Play downloads, and subsequent in-app usage and Ecommerce transactions. Google Analytics provides a powerful platform to measure and optimize all of your application marketing efforts.

Localytics is an application analytics software which can scale to track up to 100 thousand monthly active users and 12 million datapoints, keeping track of granular analytics, user flows and funnels.

The most advanced analytics for Android. When you integrate Mixpanel into your iPhone, iPad, or Android mobile apps, you gain the ability to answer complex questions in seconds. Plenty of free analytics tools give you a cursory look at mobile app usage, but Mixpanel is uniquely qualified to help you dive into your data, answering your business's most pressing questions and driving user engagement.

Quantcast Corporation is a digital marketing company that provides free audience demographics measurement and delivers real-time advertising.