Calculator Lock - Photo Vault vs LockMyPix

Calculator Lock - Photo Vault is an Android privacy vault concealed behind a working calculator and opened with a 4-digit PIN. It stores photos, videos, audio, PDFs, files, and Secure Notes in encrypted app-private storage. Different PINs can open separate vaults without a visible session switcher. Users can search and pin encrypted notes, organize items in built-in folders, and restore deleted media or notes from Trash. The app displays photos, videos, audio, and PDF previews; unsupported files can be unlocked, exported, or shared. The maker describes screenshot protection and clipboard cleanup on sensitive flows. The free plan costs nothing and allows up to two personal vaults, with ads possibly appearing. There is no cloud backup or PIN recovery. Optional Intruder Detection may capture a front-camera photo after repeated failed attempts.

LockMyPix is a mobile vault for photos, videos, documents, and other files on Android and iOS. The maker says imported files are encrypted with AES CTR in real time and kept on the device or an SD card rather than sent to its servers. For backup, LockMyPix Cloud can transfer files to the user's Google Drive or Dropbox account. Access can be protected with a password, PIN, pattern, fingerprint, or face unlock; face unlock depends on the device. The vault supports unlimited videos, including 8K video, and unlimited folders and subfolders. Premium features include a decoy vault, app disguise, intruder selfies, and SD-card storage. Free Basic Protection costs nothing, includes ads, and leaves some features to Premium. LockMyPix Premium costs $29.99, paid once and removes ads while unlocking premium features. The iOS listing requires iOS 15 or later; Mac support is listed for macOS 12 or later on an Apple M1 chip or later.