Heart rate flashlight: The flashlight program uses the flash located on the back of your Android device to bring you the light the first time wherever you go.The built-in compass and the heart-rate detector can give you extra help.Besides,all the functions are free! Features: *Beautiful interface This is the best looking and true flashlight you can hold in your hands! *Easy to use You can turn light on and off like using a real flashlight *Battery power consumption is minimal *Compass and heart-rate detector are both available