Green Tracks is a free Android application developed by Sky Wang under the Travel & Navigation category. It is a useful tool for hikers and climbers as it allows them to follow a track provided by a gpx file and record their track. The app provides GPS automatic positioning, which helps users know their current position and reduce the risk of getting lost.

The app supports offline Mapsforge and MBtiles maps, which are helpful in climbing and hiking. It also supports HGT files to improve elevation accuracy. Users can extract hgt files to the specified path by Global Settings.

Green Tracks allows users to download offline maps in .map format from OpenAndroMaps or Mapsforge website. The app provides a video tutorial on how to download OpenAndroMaps.

If you like the app, you can help translate it into your language by contacting the developer via email. Overall, Green Tracks is a useful app for hikers and climbers looking for a reliable partner for their adventures.