A free app for Android, by AppsEpps.

Hidden Security Lock Screen is one of the best-looking screen locks available in the Android app store, and it’s the best screen lock for users who want a high-quality experience. The application supports Hidden Passcode Lock to enhance security, and it also supports fingerprint and voice password options. You can set your own password to improve the security of your phone.

The best part of the application is that it has several settings. You can choose your background image from the settings, and you can also select a different theme. You can set the font color and size and use several different fonts. You can choose the font style and whether or not you want the font to be bold. You can select the text color and size and use many different text colors.