# Calculator Lock > Hide photos, videos & docs behind a secure, encrypted private calculator lock Canonical page: [https://chrome-stats.com/d/com.calculatorlock.toolapp](https://chrome-stats.com/d/com.calculatorlock.toolapp) ## Overview - **ID:** `com.calculatorlock.toolapp` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Bishnu International - **Category:** TOOLS - **Downloads:** 475 - **Version:** 1.0.0 - **Last updated:** 2026-09-08 - **First published:** 2026-09-07 - **Publisher country:** NP - **Size:** 8.30 MB - **Data as of:** 2026-10-30 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.calculatorlock.toolapp) - **Website:** [https://bishnuinternational.com](https://bishnuinternational.com/) - **Privacy policy:** [https://bishnuinternational.com/calculator-lock-policy.html](https://bishnuinternational.com/calculator-lock-policy.html) ## Description Calculator Lock – The Ultimate Private Vault & Secure Gallery.
Protect your privacy with Calculator Lock, the most sophisticated secret vault app designed to look like a fully functional standard calculator. Your files are not just "hidden"—they are AES-256 bit hardware-encrypted, ensuring your sensitive photos, videos, and documents remain accessible only to you.

Key Features:
* Military-Grade Encryption: All imported files are secured using AES-256-GCM encryption, with keys stored safely in the Android Keystore system.
* Private Photo & Video Vault: Hide unlimited images and high-definition videos. View them directly within the app using our high-speed secure player.
* Document Protection: Secure your PDFs, notes, and confidential documents behind a PIN.
* Fully Functional Calculator: To the outside world, it’s just a standard calculator. Nobody will suspect your secret vault exists.
* Security Question Recovery: Never lose access to your data. Set a custom security question to reset your PIN if forgotten.
* Screenshot Protection: Prevent other apps (or accidental captures) from seeing your vault content with built-in FLAG_SECURE protection.
* Multi-Theme Support: Choose between Light, Dark, or System Default modes to match your preference.
* Multilingual: Available in English, Nepali, Hindi, German, Spanish, and French.

Why choose Calculator Lock?
Unlike other "hide" apps that just move files to a different folder, Calculator Lock transforms your data into unreadable code. Even if someone accesses your phone's memory, they cannot view your files without your master PIN. ## Rankings - #1,457,245 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.FOREGROUND_SERVICE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.READ_APP_BADGE` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.anddoes.launcher.permission.UPDATE_COUNT` - `com.calculatorlock.toolapp.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` - `com.calculatorlock.toolapp.permission.C2D_MESSAGE` - `com.google.android.c2dm.permission.RECEIVE` - `com.google.android.gms.permission.AD_ID` - `com.htc.launcher.permission.READ_SETTINGS` - `com.htc.launcher.permission.UPDATE_SHORTCUT` - `com.huawei.android.launcher.permission.CHANGE_BADGE` - `com.huawei.android.launcher.permission.READ_SETTINGS` - `com.huawei.android.launcher.permission.WRITE_SETTINGS` - `com.majeur.launcher.permission.UPDATE_BADGE` - `com.oppo.launcher.permission.READ_SETTINGS` - `com.oppo.launcher.permission.WRITE_SETTINGS` - `com.sec.android.provider.badge.permission.READ` - `com.sec.android.provider.badge.permission.WRITE` - `com.sonyericsson.home.permission.BROADCAST_BADGE` - `com.sonymobile.home.permission.PROVIDER_INSERT_BADGE` - `me.everything.badger.permission.BADGE_COUNT_READ` - `me.everything.badger.permission.BADGE_COUNT_WRITE` ## Similar extensions and apps - [Calculator Private Lock](https://chrome-stats.com/d/com.dp.privatecalculator) — 1,304 users - [Calculator Lock: Hide Files](https://chrome-stats.com/d/com.calculatorlock.calculatorapplock.calculator_lock) — 165 users - [Calculator Lock](https://chrome-stats.com/d/com.calculator.lock.secure.vault.safe.protect.app) — 17 users - [Calculator Lock : Photo Vault](https://chrome-stats.com/d/com.calculator.lock.photovault.hide.photos) — 3,631 users - [Calculator Lock: Photo Vault](https://chrome-stats.com/d/calculator.vault.calculatorphotovault.hidephotos) — 11,388 users - [Calculator Lock - Hide Photos](https://chrome-stats.com/d/com.brave.calculator.vault.hide.photo) — 685 users - [Calculator Lock Photo Vault](https://chrome-stats.com/d/com.jmdsol.vault.calculator) — 195,563 users - [Calculator Vault: Hide Photos](https://chrome-stats.com/d/com.calculator.vault.lock.photo.video.document.hider) — 255 users - [Calculator Lock - Hide Photo](https://chrome-stats.com/d/com.calculator.lock.hide.photo.video.converter.vault) — 46,325 users - [Calculator Lock Pro](https://chrome-stats.com/d/com.calculatorlockpro.vault) — 2,345 users - [Calculator Vault: Hide Photos](https://chrome-stats.com/d/com.graphicallitech.calculatorvalt) — 219 users - [Calculator Lock - Hide Photos](https://chrome-stats.com/d/com.applock.calculatorlockhidephotos) — 723 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.calculatorlock.toolapp)