Google Official Analytics Mobile App useful for Developers [Play Store link]

Google Analytics on the desktop gives mobile app developers a chance to look at metrics involving your apps. Now, Google is making the information mobile by offering a version of Google Analytics for the Google Play Store that is optimized for a smartphone. You can get a real-time report showing how many visitors you have and your most popular web pages or app screens.

The Dashboard lets you customize the information so you can see the metrics that are most important to you. You will default to the number of daily unique visitors and goal conversion rate, but you can make changes to the screen.

Google Analytic [Play]