SuperLock is the best app to protect and hide your private photos, videos, audio records and notes by locking them behind a password and pattern lock. All files’ data streams are encrypted and saved in local storage other than a server.
Some of the features:
Password or pattern lock is needed to access the app.
Create and name custom photo albums.
Add photos&videos into SuperLock from Photo App.
Add photos&videos into SuperLock from in App Camera.
Add files from computer into SuperLock over WiFi.
To recover encrypted files by send an Email attaching the files.