Calculator Lock - Photo Vault

Calculator Lock - Photo Vault is a privacy utility that lets you hide photos, hide videos, and lock private notes behind a real working calculator. On your screen, it looks and works like an everyday calculator—enter your secret PIN followed by '=' to unlock your encrypted private gallery. Keep personal memories, sensitive clips, and confidential memos out of your public photo gallery with local AES-256 encryption, biometric fingerprint recovery, and anti-snooping security controls. KEY PRIVACY & VAULT FEATURES • Hide Photos & Videos Privately Move personal pictures and 4K videos out of your public gallery into a hidden photo vault. Organize locked media into custom albums such as Favorites, Family, and Documents for fast viewing anytime. • Functional Calculator Disguise Perform daily math calculations naturally. Your secret gallery lock remains invisible until you enter your 4 to 8 digit passcode and press '='. • 100% Local AES-256 Encryption Hidden photos, videos, and notes are encrypted directly on your device inside private sandboxed storage. No cloud servers, no external uploads, and no broad file-access permissions required. • Biometric Fingerprint & Security Recovery Forgot your master PIN? Quickly verify your identity using your device fingerprint sensor or your custom security question to reset your passcode safely in seconds. • Intruder Selfie Break-In Log Automatically logs unauthorized unlock attempts with a front-camera photo and timestamp whenever someone enters an incorrect PIN on the calculator lock screen. • Icon Camouflage & Decoy Vault Customize your launcher icon disguise for shared devices, and configure a secondary Decoy PIN that opens a separate safe gallery space when needed. • Panic Flip-to-Lock & Screen Guard Place your phone face-down to lock your vault immediately, and enable anti-spy screenshot protection to block unauthorized screen captures or app-switcher previews while your vault is open. • Private Browser & Encrypted Notes Browse websites privately without saving local browsing history or cookies, and store sensitive memos, lists, and credentials inside AES-256 locked notes. • Built-In Recycle Bin Accidentally deleted a hidden photo or video? Restore removed items easily from the internal vault trash before permanent deletion. HOW TO USE 1. Open the app and set your 4–8 digit Master PIN along with fingerprint or security question recovery. 2. Tap '+' inside the vault to select and hide photos or videos from your device gallery. 3. Anytime you return, type your PIN on the calculator pad and press '=' to unlock your private vault. IMPORTANT PRIVACY & BACKUP NOTICE All hidden files are stored exclusively on your device for your privacy—we never upload or back up your media to external servers. Always unhide and restore your photos and videos back to your public gallery before uninstalling the app, clearing app storage, or switching devices. Camera access is optional and used strictly in the foreground for the Intruder Selfie feature.