Vaultaire vs PV Secret Photo Album

機能比較

Vaultaire：17/17項目。PV Secret Photo Album：6/17項目。

料金比較

The PIN Facade Problem

PV Secret Photo Album gates access behind a PIN. Once that PIN is entered, every file inside is immediately visible and readable. There is no per-file encryption, no key derivation, and no cryptographic transformation of the underlying data. The files sit on disk in their original format. Any tool that can read the iOS file system -- iTunes file sharing, an iMazing backup, a jailbroken device -- can access the photos directly without ever encountering the PIN.

Vaultaire derives an encryption key from your visual pattern using HKDF-SHA256 and encrypts every file individually with AES-256-GCM. Without the correct pattern, the data is indistinguishable from random noise. There is no shortcut past the cryptography.

Data Accessibility on Disk

When a vault app stores photos without encryption, those photos are just files in a directory. Rename the directory, change the file extension, hide the folder -- it does not matter. A forensic examiner, an abusive partner with a laptop, or anyone who can access an unencrypted backup will find those files in minutes. This is the fundamental weakness of PIN-based hiding: the data itself is never protected.

Vaultaire writes only ciphertext to disk. Each file is encrypted with a unique nonce and authenticated tag. Even if someone copies the raw bytes from the device, they hold nothing usable without the encryption key.

The Ad-Supported Model

PV Secret Photo Album runs ads in its free tier. This means the app must contact ad networks, transmit device identifiers, and maintain network connections to serve advertisements. For a privacy-focused application, this is a contradiction: the app designed to hide your private photos is simultaneously broadcasting your device fingerprint to third-party ad servers.

Vaultaire operates offline by default. The free tier includes zero advertisements. No ad SDKs are bundled. No network calls are made unless you explicitly enable iCloud backup.

Recovery Limitations

Users who forget their PV Secret Photo Album PIN face total data loss. There is no recovery phrase, no backup decryption key, and no way to regain access. Combined with the lack of encrypted backups, a device transfer or iOS update can result in permanent loss of hidden photos. This is a recurring complaint in App Store reviews.

Vaultaire provides a BIP-39 recovery phrase at vault creation. If you lose your device or forget your pattern, the recovery phrase restores full access to your encrypted data. Your iCloud backups remain encrypted, so even a device migration preserves your vault contents without exposing them.