The app includes the following features.
- create track; a track gets always created when the app is running
- create waypoints and add photos to them
- choose a track and follow it
- edit tracks and waypoints
- show multiple tracks
- monitor real time: current track's length, duration, speed and altitude as well as real time distance to every waypoint
- export and import tracks, waypoints and photos to your Google Drive or local storage;
For more information see
https://gpsbook.info