# Lock Practice > Practice combination dial lock for school locker with instructions + simulation Canonical page: [https://chrome-stats.com/d/eizu.MasterLock](https://chrome-stats.com/d/eizu.MasterLock) ## Overview - **ID:** `eizu.MasterLock` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Eizuberg - **Category:** PRODUCTIVITY - **Downloads:** 4,552 - **Rating:** 2.63 / 5 (9 ratings) - **Version:** 14.08.26 - **Last updated:** 2026-08-15 - **First published:** 2025-10-27 - **Publisher country:** SI - **Size:** 5.22 MB - **Data as of:** 2026-09-11 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=eizu.MasterLock) - **Website:** [https://gionehub.github.io/](https://gionehub.github.io/) - **Privacy policy:** [https://gionehub.github.io/rdkvocmn/](https://gionehub.github.io/rdkvocmn/) ## Description Unlock confidence with Lock Practice β€” the easiest way to practice and master opening combination-style school or gym lockers. Whether you're a student, parent, coach, or simply prepping for locker duty, this app puts you in control β€” no real lock needed.

Why you’ll love it πŸ’‘
🎯 Realistic virtual dial with smooth rotation and tactile feedback
πŸŒ€ Step-by-step guided practice: clear the dial, turn right, then left, then right again
πŸ”’ Customize your own 3-number combination (or use randomized codes) to match your locker
🎨 Choose your favorite lock color β€” personalize your virtual lock for a fun, realistic look
πŸ’Ύ Save multiple lock codes β€” manage and practice all your school, gym, or work locks in one place
πŸ“³ Visual cues and optional vibration feedback to build muscle memory
✨ Simple, clean interface built purely for training and confidence

Key Features βš™οΈ
πŸ” Authentic Lock Simulation β€” Accurate dial graphics and smooth rotation for a realistic feel
🎲 Custom & Random Combos β€” Enter your real locker’s numbers or challenge yourself with random codes
πŸ“˜ Guided Training Mode β€” On-screen steps show how to dial correctly: clear, spin right X times, left to first number, right to second, and so on
πŸ‹οΈ Free Practice Mode β€” No pressure; repeat as much as you want until you’re fast and confident
🎨 Color Customization β€” Pick from different lock colors to make the app your own
πŸ—‚οΈ Multi-Lock Management β€” Save and name multiple combinations; perfect for students with several lockers
πŸ’ͺ Confidence Booster β€” Great for students, parents, or anyone who wants to open locks smoothly and stress-free

Who is it for πŸ‘₯
πŸŽ’ Students learning to open their first locker
πŸ‘¨β€πŸ‘©β€πŸ‘§ Parents teaching younger kids before school starts
🏫 Teachers and coaches helping students practice
πŸ”‘ Anyone with multiple combination locks wanting to store and manage codes safely

Get ready to open with ease πŸš€
Download Lock Practice now and train until you’ve got it down β€” so when it counts, you dial in with confidence! ## Rankings - #737,367 β€” Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.CAMERA` - `android.permission.FOREGROUND_SERVICE` - `android.permission.INTERNET` - `android.permission.MIDI` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.android.vending.CHECK_LICENSE` - `com.google.android.gms.permission.AD_ID` - `eizu.MasterLock.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [Locker Lock Practice](https://chrome-stats.com/d/com.practice.locker_lock_practice) β€” 49 users - [Locker Combination Practice](https://chrome-stats.com/d/com.sight35.lockercombinationpractice) β€” 1,935 users, 1.60 / 5 - [School Locker Practice](https://chrome-stats.com/d/com.h3apps.school_lock) β€” 853 users, 3.30 / 5 - [Combination Lock Practice](https://chrome-stats.com/d/com.combinationlockapp) β€” 8,163 users, 3.20 / 5 - [MultiplyLock](https://chrome-stats.com/d/com.bigsmile169.multiplylock) β€” 372 users - [Lock Pick](https://chrome-stats.com/d/com.lockpuzzle2345) β€” 3 users - [Pick Lock](https://chrome-stats.com/d/com.brotherhoodapp.picklock) β€” 5,394 users, 4.00 / 5 - [Door Lock Screen](https://chrome-stats.com/d/com.photomakeup.real.decent.door.lock.screen) β€” 119,239 users, 4.14 / 5 - [LockTap – Crack the Combo](https://chrome-stats.com/d/com.oneSoftStudio.SubwayMiniRunner) β€” 129 users - [Lockpick 101](https://chrome-stats.com/d/com.Avarice.Lockpick101) β€” 253,098 users, 4.39 / 5 - [BetaLock](https://chrome-stats.com/d/com.clockwork.pendulum.chime.rotary) β€” 100 users - [QLock(Authenticaiton)](https://chrome-stats.com/d/com.eyl.qlock) β€” 8 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/eizu.MasterLock)