Obscura Photo Vault vs Photok

Obscura Photo Vault stores photos and videos in encrypted vaults on iOS. It uses AES-256-GCM and derives vault keys with 600,000 rounds of PBKDF2-HMAC-SHA256. The maker says the app functions without network access, has no server or account system, and gathers no installation, usage, or analytics data. It provides ten encrypted vault slots, Face ID and Touch ID unlocking, configurable auto-lock, delays after failed attempts, and memory clearing when a vault locks. Photo tools include editing, collages, tags, favorites, manual arrangement, duplicate detection, and Live Photo frame extraction. Users can import from their camera roll and export a vault as a password-protected encrypted.obscura file. Vault data is included in iCloud Backup by default and remains encrypted there. The maker says the indistinguishability property for hidden vaults applies only within stated threat-model bounds. The free plan allows up to 50 photos in one vault. Pro Monthly is $6.99 a month; Pro Yearly is $29.99 a year after a 7-day free trial; Pro Lifetime is $39.99, paid once payment. Forgotten passwords cannot be recovered.

Photok is an Android vault for keeping private photos and videos away from ordinary view. Imported media can be organized into albums and exported, while files are encrypted locally with AES-256 and decrypted only in memory during use. Cloud upload is not required. Users can unlock with a fingerprint, share directly into the vault, hide the app icon, and delete originals after import. Encrypted backups can be created and restored. Photok is open source under the Apache 2.0 License and is developed by Leon Latsch and public volunteers. Downloads are listed for Google Play, F-Droid, and other alternatives. The maker describes the core app as identical across Google Play and FOSS variants, but telemetry defaults differ: enabled by default in Google Play and disabled by default in FOSS. The FOSS plan costs nothing; Photok Pro is an optional Google Play add-on with no listed price.