GAMBLER'S LUCK isn't an app. It's a brilliant mentalism trick that you can perform anytime, anywhere, with just a cell phone.

This easy-to-do method allows you to guess three things the spectator is thinking: a roulette number, a die roll, and a horse's number in a horse race.

The most impressive part is that the spectator thought of all these things but never said them loud. This method also allows you to guess and unlock the spectator's phone passcode without them ever having written it down anywhere the magician could see or control it.

It's incredibly easy to do, and all you need is a cell phone.