Calculator Locker: Photo Vault

Keep your photos, videos, files and notes in a private vault hidden behind a working calculator.

Calculator Locker works like an everyday calculator. Enter your personal code and press equals to open your encrypted vault. Use it to organise your own private content on your phone, with no account or cloud storage.

HIDE PHOTOS AND VIDEOS
Import pictures and videos from your gallery into encrypted albums. Mark favourites and keep personal media together. After a successful import, you can choose whether to remove the originals from your gallery.

LOCK FILES AND PRIVATE NOTES
Store PDFs, documents and other files in folders. Keep personal notes inside the same vault, without syncing them to a separate notes service.

USE THE BUILT-IN PRIVATE BROWSER
Browse inside the vault with your choice of search engine. Third-party cookies are blocked by default, and downloads are saved directly into the vault. Browser privacy does not hide your traffic from your network or internet provider.

CHOOSE YOUR PROTECTION
• Unlock with your code, or enable fingerprint or face unlock on supported devices.
• Set an optional decoy code that opens a separate vault.
• Choose automatic locking, screen-off locking, shake to lock or face-down locking.
• Block screenshots and screen recording while the vault is open.
• Enable break-in photos after a chosen number of incorrect code attempts.
• Choose a calculator, counter or unit converter disguise.

PRIVATE STORAGE ON YOUR PHONE
Your vault content is encrypted with AES-256-GCM and stored in the app's private storage. There is no account, cloud sync, advertising, analytics or crash reporting. The app uses the internet when you browse or download through its built-in browser.

KEEP AN ENCRYPTED BACKUP
Export a backup protected by a passphrase you choose, then restore it on another phone. Keep your code, recovery answer and backup passphrase safe: without a working recovery method or backup, forgotten access details can mean losing your content.

Permissions are used for the features you enable: camera for break-in photos, biometrics for fingerprint or face unlock, and internet for the private browser.

Calculator Locker is designed to protect your own private content on your own device.