NullVault vs Weave Vault

NullVault stores photos, videos, files, and notes in separate encrypted vaults, each opened with its own pattern. Entering a pattern opens the matching vault without showing a master list or the number of vaults. Within a vault, users can organize content into collections, search, and sort; they can capture or import items and deliberately export selected ones. Exported copies are outside NullVault’s protection.

Local vaults work offline without a NullVault account or server. The maker describes Android encryption using AES-256-GCM, Argon2id, and Android Keystore material; its iOS description lists AES-256-GCM, Argon2id, Apple CryptoKit, and libsodium. iOS supports encrypted iCloud backup and controlled read-only sharing through CloudKit, while Android supports portable encrypted backups. The free iOS plan allows up to five vaults and 20 items total, with one collection per vault. Compatibility is listed for iPhone running iOS 26 or later and Android phones running Android 10 or later. The maker warns that a compromised device may expose patterns, keys, screens, or plaintext, and that hidden vaults do not make encrypted data impossible to detect.

Weave Vault is a mobile encrypted vault for private photos, videos, PDFs, and documents, available on Android and iOS. A pattern drawn on a 5×5 grid derives the key; an unrecognized pattern opens a fresh, empty vault rather than showing an error. The app supports files up to 16 GB and includes sealed folders, duress mode, and a camera that captures directly into the vault. Its security page says AES-256-GCM seals files, thumbnails, metadata, vault manifests, and key-wrapping headers. A 12-word recovery phrase appears once when a vault is created. If both the pattern and phrase are lost, the vault cannot be recovered. Optional encrypted backup requires Pro and stores ciphertext in the user's iCloud or Google Drive; restoring does not require Pro. Sharing sends a point-in-time copy that expires within at most 30 days and can be revoked earlier. The free plan allows up to three vaults and 50 files per vault. Annual, monthly, and lifetime Pro prices are shown in the app at purchase time; the annual plan includes a seven-day free trial for new subscribers.