HOW TO INSTALL APPLICATION: 1.DOWNLOAD .APK FILE 2.RUN .APK FILE 3.RUN THE APPLICATION (ALLOW ACCURATE GPS LOCATION FOR APPLICATION) 4.IF YOU RUN INTO PROBLEMS: a)RESTART APPLICATION b)GO OUTSIDE (gps might have problems indoors) ------------------------------------------------ HOW TO TEST A BUILD FROM CURRENT PROJECT: 1. Install expo (https://expo.io/) 2.Open command line 3.Open project directory. 4.>expo start 5.Scan QR code with expo app. Install this on your smartphone from Google Play if you do not already have it. 6.Project is built and sent into your smartphone. 7.Run app ------------------------------------------------ HOW TO MAKE .APK FILE FROM CURRENT PROJECT: 1.Install expo (https://expo.io/) 2.Open command line 3.Open project directory. 4.>expo build:android 5.Follow instructions expo prints on the command line to download the output file. Radu's note: Authors chose to not reveal their source code.