VaultShield

VaultShield is a private photo and video vault for iPhone and iPad. It encrypts your photos, videos and documents on your device and keeps them out of your camera roll, Recents and shared albums. There's no account to create, it works fully offline, and you unlock it with a pattern, with optional Face ID on top. Folders can have their own locks, the in-app camera never saves to your camera roll, the app icon can be disguised, and encrypted iCloud backup is there only if you want it. Security is explained plainly, not with slogans: files are encrypted with XChaCha20-Poly1305, your pattern is turned into a key with Argon2id, and that key is protected by the iPhone's Secure Enclave.