Swift Locker - Unlock&Booster – 4.2.5

Lock Booster is the smartest way to unlock your screen. This screen locker combines a custom lock with a smart unlock system. In fact every time you unlock, the boost function speeds up your smart phone. There's more! You can customize your unlock screen with HD lockscreen wallpapers or use your own photos. Millions of users already choose and love Lock Booster unlock system.