MyCoffer

MyCoffer is an encrypted file cabinet. Your files are encrypted and locked in a cabinet with a password that only you know. 1. It looks like just a pushing box game When you open the app, you will see a fully playable box pushing game with 20 built-in classic levels. When someone picks up your phone, they will just think you are playing a game. Only you know how to enter the real file cabinet (click "Level" 5 times in succession to enter the file cabinet list, and then you will need biometrics and a password to open the file cabinet). 2. Real encryption is not simply hiding Many "private albums" just hide files and can be seen by changing the file manager. MyCoffer truly encrypts each file: • Uses XChaCha20-Poly1305 encryption algorithm, which uses the same technology as mainstream security software • The password is processed by Argon2id, which greatly increases the difficulty of brute force cracking. • Each piece of data has integrity check, and if the file is tampered with, it will be discovered immediately • No one can open it without a password, including ourselves 3. Completely offline, no data collected • The app does not request network permissions and your files will never be uploaded • No account registration required, no ads, no tracking • Do not apply for storage permissions, only access files of your own choosing • Screen capture and screen recording will be disabled when the APP is in the foreground to fully protect user privacy 4. Where to place the cabinet is up to you. A file cabinet is a separate file that you can place anywhere on your phone, or you can copy it to a cloud disk or computer for backup. What is backed up is also encrypted and cannot be opened by others. 5. No need to decrypt and export, view directly in the cabinet • Pictures: Browse directly • Videos and music: decrypt and play at the same time, even large files can be played smoothly • PDF and EPUB e-books: read directly from your cabinet • Text file: can be viewed or edited directly During the viewing process, the decrypted content will not be written to the phone's storage, and no trace will be left when it is turned off; after the APP enters the background, the file cabinet automatically locks (the background grace time can be set to control the locking timing) 6. Very convenient to use • Multiple file cabinets can be created with different passwords • You can import file cabinets shared with you by others (provided you know the password) • The file management method in the cabinet is similar to that of an ordinary file manager. *IMPORTANT NOTE* To ensure absolute security, MyCoffer does not save your password and does not have a "retrieve password" function. If you forget your password, your files will not be recovered. Be sure to remember your passwords and back up your filing cabinets regularly. Leave the secret to math, not luck.