Calculator Lock secures your personal photos, videos, and files behind a functioning calculator. Switch between standard and scientific calculator modes while your content remains hidden from gallery apps, accessible only through your secret PIN.

Security Features

PIN Protection - Enter your custom numeric password on the calculator keypad followed by '=' to unlock your private vault. The transition is seamless and gives no indication that you're accessing hidden content in your photo lock app

Decoy Albums - Create secondary vaults with different passwords to maintain separate levels of privacy. Show less sensitive content in your decoy vault while keeping truly private files in your main secret vault

Privacy Screen - The app automatically obscures content when you switch to another app or receive a notification, preventing accidental exposure of your private files and confidential media

Dual Calculator Modes - Both standard and scientific calculators include all expected functions. Use standard mode for quick calculations or scientific mode for trigonometry, logarithms, and advanced math operations while hiding pictures

Media Management Capabilities

Hide Photos & Videos - Import content from your device gallery with support for all major formats including JPG, PNG, GIF, MOV, MP4, AVI, and MKV. Once imported, files vanish from your public gallery and remain accessible only within the vault as your private photo vault keeps secret pictures safe

Multiple Album Organization - Create unlimited albums and nested folders to organize content however you prefer. Sort family photos separately from work documents, or organize based on your personal needs within your hidden gallery

Private Camera Function - Take photos and record videos directly within the app, ensuring they never appear in your device's public gallery. Perfect for capturing sensitive content and movies that needs immediate privacy protection - so that your "my eyes only" moments stay truly private

File Management

Private Notes Feature - The built-in text editor with app lock protection lets you store passwords, personal thoughts, account information, or any confidential text safely within your secret folder vault

Trash Recovery System - Deleted files don't disappear immediately but move to a trash folder where they remain indefinitely. Recover deleted photos, videos, and other items even months later from your secure photo locker

Backup & Recovery

Backup Protection - If enabled, you can protect your vault contents against device loss, theft, or damage. If something happens to your phone, your memories and important files remain safe and recoverable with our secure backup recovery system. Keep your hidden photos and private videos protected across devices

FAQ

Password Recovery: If you forget your PIN, enter "11223344=" on the calculator to access the recovery screen where you can use your recovery email to reset access to your photo hider vault.

File Safety: Without multi-device sync enabled, uninstalling the app will permanently delete local files. With sync active, your content remains safe and can be restored by reinstalling and signing in.

Supported Formats: Calculator Lock handles virtually all common file types including images (JPG, PNG, GIF, BMP), videos (MP4, MOV, AVI, MKV), documents (PDF, DOC, TXT), and audio files (MP3, WAV).

Decoy Functionality: Different PINs can open completely different vaults, allowing you to maintain multiple levels of privacy for different types of content in your secret photo album and video safe.

Need more help?

If you are having any problems with the app, please contact us by sending an email to: [email protected]

For additional information, please read our Terms of Service (https://calculatorhide.com/terms) and Privacy Policy (https://calculatorhide.com/privacy).