Crazy. These are the apps that bundle location and network scraping libraries. Those libraries not only gather location data (GPS or network based) but also spy on your surrounding wifis, bluetooth beacons and cell towers.
This allows the distributors to build huge databases that allow to locate things without GPS, just cell networks.
This is actually really useful and I encourage people to help improve this. Use NeoStumbler and collect such data. It is all opensource and will be processed to not allow such tracking. But it will allow geolocation privately, for everyone.
Ironically people are already doing this all the time, and not privately at all.