Trackbook is a bare bones app for recording your movements. Trackbook is great for hiking, vacation or workout. Once started it traces your movements on a map. The map data is provided by [OpenStreetMap (OSM)](https://www.openstreetmap.org/).
Trackbook is free software. It is published under the [MIT open source license](https://opensource.org/licenses/MIT). Trackbook uses [osmdroid](https://github.com/osmdroid/osmdroid) to display the map, which is also free software published under the [Apache License](https://github.com/osmdroid/osmdroid/blob/master/LICENSE). Want to help? Please check out the notes in [CONTRIBUTE.md](https://github.com/y20k/transistor/blob/master/CONTRIBUTE.md) first.
Version 0.9 is the first release of Trackbook. It is not completely finished yet, but you can install it. Watch the install canary... It finally flies(*). You install it via Google Play and F-Droid - or you can go and grab the latest APK on [GitHub](https://github.com/y20k/trackbook/releases).
To stop your recording press the big blue button again or use the stop button in the Trackbook's notification. You can look at the recorded movements on the map afterwards.
Trackbook uses [osmdroid](https://github.com/osmdroid/osmdroid/) to draw its maps. osmdroid needs to know the current state of your device’s connectivity - see [Prerequisites](https://github.com/osmdroid/osmdroid/wiki/Prerequisites).
Trackbook needs accurate GPS location data to be able to record your movements. If the GPS data is not available or not accurate enough Trackbook uses location data from cell tower and WiFi triangulation.
Trackbook uses [osmdroid](https://github.com/osmdroid/osmdroid), which caches map tiles on Android's external storage. You can find the map cache in the `osmdroid` folder on the top level of the user-facing file system.
