Applock Pro

Applock Pro is an app for protecting your smartphone apps, photos, and videos with a password of your choosing.

When you open this app, it will ask you for a four-digit PIN and the answer to a security question. After that, you'll have more decisions to make, such as which apps, photos, and videos to protect with the password you've set. You can also change the app's theme, icon, and name to camouflage it on your smartphone without it getting accidentally deleted.

Applock Pro is an excellent way to protect your photos and videos with a password, removing them from the gallery and accessing them with this app instead.