Photo Bunker

Photo Bunker aims to provide an extra layer of privacy for your videos and photos against everyone that has knowledge of your Passcode, or that has gained access to your phone content. You can now handover your unlocked phone to a friend without the fear of them seeing photos you don't want them to.
Photo Bunker is also a lightweight photo editor that allows you to add text and do simple changes to your images. It also allows you to add metadata such as title and description to your media. Share your media, save them onto your iPhone.
Photo Bunker encrypts and compress your media and allows you to save the encrypted data on your other devices and you can share your encryption key at a later stage to access the plain data.
Photo Bunker uses a user-defined 5-Digit PIN that is used as the primary authenticator; it also uses Touch and Face ID as authenticators. Photo Bunker detects changes in your authenticators (TouchID, FaceID) and automatically disables logging in by means of the relevant mechanism.