By QuocHungEdu on Youtube

“Have you ever found it not easy to get back to your car in a huge car park? Or you were in the jungle and could not find the way back? Why don’t use these two free offline Android apps in combination on your BlackBerry Passport? The open source GPS Logger developed by BasicAirData is the best app (among many other GPS logging apps) since it is simple, free of charge, and especially extremely battery-friendly! The app running offline means you do not need 3G/4G data or WIFI at all. You can use the app even in the remote jungle! It records the track you have passed! Once the track has been recorded with GPS Logger, you just export it to a kml file, and then import this kml file in to Maps.Me – an excellent offline navigator. Now you can follow the recorded track to get back to your departure point. ”