For those who say it doesnt work...

Dont complain that the app doesnt work until you try the following:

1. Make sure youre traveling at 88 MPH
2. Make sure the crystals are in the proper receptacle, and that youre holding the T-Bar correctly (in your crotch) before plugging it in (the device, not your crotch)

TL;DR - youre holding it wrong

dorianh49 about Back to the Future: Flux Capacitor