File Locker is a very useful app for Android users who need to keep their personal files safe and secure. With this, you can lock your files and folders in an easy and convenient way, making it more secure than ever before. The good thing is that this app supports multiple locking methods and can be used with a password, fingerprint, and face recognition. Besides, this app can also be used with a pattern or a PIN, so it's even more secured.

To use File Locker, you need to open it, create a new password, and enter the new code.