App ideas - free of charge

Hey! Nice topic =)

Here:
GPS Breadcrumbs: app should automatically save GPS waypoints when a person moves and fall asleep when B.js idle for a long time (a person not moves). The app should then guide the person back from point to point, automatically. The idea is to have many intermediate saved GPS points, for example, to wander around an unfamiliar city or forest and then return back along the same route.

There are similar applications, but there you need to mark and select waypoints yourself: GPS Navigation, Waypointer Moto, Way Pointer.