Cofferlock: Photo & File Vault

Keep your private photos, videos and documents locked in one vault that only you can open. Cofferlock works like a normal file manager, and your files never leave your phone.

★ WHY COFFERLOCK

• A real file manager, not just a gallery: folders, subfolders and any kind of file.

• Your whole vault is one locked file. Keep it in any folder you like. To back it up, just copy that file.

• Open photos, videos and documents in your usual apps. No unlocked copy is left behind.

• Safe if something goes wrong: if an import stops halfway or the app is closed, your vault is not damaged. A built-in repair tool can fix a damaged vault.

• Delete files and get the space back on your phone (right away on most phones, or with one tap on others).

★ STRONG PROTECTION

• Strong encryption locks every file. Even if someone copies the vault file, they cannot read it without your password.

• Unlock with your password or your fingerprint.

• Forgot your password? 12 recovery words open your vault.

• Change your password in seconds.

• After wrong passwords you must wait longer and longer, and the Security tab shows every unlock and every failed try.

★ EASY TO USE

• List or grid view with previews of your photos and videos, sorting, search and selecting many files at once to move, rename or delete.

• Show only Photos, Videos, Audio or Documents.

• Add files, photos, videos or whole folders. You choose whether the originals are deleted.

• Share files, or copy them out of the vault when you need them.

• Works on phones, tablets and foldables, in light or dark theme, in 11 languages.

★ PRIVATE BY DESIGN

• Locks by itself 30 seconds after you leave the app, or tap Lock.

• Screenshots are blocked, the app is hidden in recent apps, and copied text is cleared.

• No account, no cloud, no ads, no tracking. No access to your storage or camera: you pick each file yourself.

★ PRO: PAY ONCE, NO SUBSCRIPTION

The free version has everything above, with a vault of up to 5 GB. Pro adds:

• Unlimited space and more than one vault.

• A decoy vault: a second password opens a different vault.

• An emergency password that erases the vault, and erasing after 10 or 20 wrong passwords.

• Disguise: show Cofferlock as another app with a different name and icon.

• Sealed envelopes: send files locked with their own password (from 2 MB).

• Encrypted Trash (7 or 30 days), duplicate cleaner, moving a whole folder of photos into the vault, and adding files from any app's Share menu.

• Show mode, a PIN for single folders, shake to lock, your own auto-lock time, a lock button in Quick Settings, blurred previews and a scrambled keypad.

• One-tap backup with reminders, stronger password settings, the full security history and a check that shows whether a file has changed.

The Supporter edition has the same features. Restore purchase turns Pro back on for the Google account that bought it.

★ YOUR FILES STAY YOURS

Your files leave your phone only when you open, share or copy them yourself. Cofferlock uses the internet only to check for app updates and, if you buy Pro, to confirm the purchase with Google Play. A crash report is shared only if you choose to send it. Android backup and device transfer of the app's data are turned off.

Requirements: Android 8.0 or newer; fingerprint unlock needs Android 9 or newer. Permissions: fingerprint, internet (update check, purchase check) and Google Play billing; the purchase and update libraries add standard entries such as network state and wake lock.

Support: use the support button in the app.