Locker Practice App

Locker Practice helps students master combination locks before the first day of school. Use a realistic full-size dial with haptic clicks, follow turn-by-turn lessons, and get helpful feedback when you make a mistake.

Save your real locker combination securely on your device, practice with timed drills, track solve times and streaks, and choose from multiple dial styles. The app supports 0–39 and 0–49 locks, random combinations, unlimited practice upgrades, and progress history. It’s free to use with an optional one-time purchase, and includes no ads, accounts, or tracking.