OwnTracks is a free Android app that enables you to keep track of your location. It is a versatile application that allows you to build a private location diary or share your location with your family and friends.

The app is open-source and uses open protocols for communication, ensuring that your data remains secure and private. It is a great tool for individuals who want to keep track of their movements or those who need to share their location with others. The app is easy to use and has a simple interface that is intuitive for users of all levels.