XCSoar is a tactical glide computer for glider pilots, paragliders and hanggliders.
You need waypoints, airspaces and a map file. Read the manual for installation instructions (http://www.xcsoar.org/ ).
This release is a preview for the upcoming version 6.8. At this point, it may still have critical bugs and may be unreliable.
Report problems in our bug tracker: http://bugs.xcsoar.org/newticket
This is free software, developed by dozens of volunteers all over the world in their free time. New developers welcome.
We cannot answer questions in PlayStore comments. If you want to contact us, we have a forum.