App Usage is a free Android app developed by Giuseppe Romano that provides detailed statistics on the usage of other applications. The app collects data on the package name, first timestamp, last timestamp, total time in foreground, and last time used of each application on your device.

The app has a simple and easy-to-use interface that allows you to view the usage statistics of individual applications or all applications on your device. You can also view usage statistics for a specific time period, such as the last day, week, or month. With this information, you can identify which applications you use the most and how much time you spend on them.