You can record log of your move with picture and memo.
You can see your friends location and picture who login in the same room.
You can check your friend picture on whose rout.
Attention!
Continued use of GPS running in the background can dramatically decrease battery life.
So please adopt suitable stop and restart.
When you stay same place about 15 minutes, recording of location in background will stop. So that if you want to record again, please wake up this application again.