Screen Hider is an Android app developed by Titan Built Apps that aims to keep your privacy in check. With this app, you can use your phone in public without anyone noticing. This app lets you hear audio without displaying the video, hide the content you're watching from others, avoid accidental touches, and play games while appearing to study or read with the 'Book Overlay' feature.

Screen Hider offers a variety of features, including Default Black Screen, Book UI, Touch Lock, Gallery UI, Brightness Control, Caller UI, and Quotes UI. The app is free to download and use.

To use Screen Hider, simply install the app and allow permissions when prompted. Select the layer type you need, and you're ready to go. To close the overlay when hidden, double-tap the screen. It is important to note that you should not close the app when an overlay is selected, and instead, just minimize it.

Overall, Screen Hider is a useful tool for anyone who values their privacy and wants to use their phone without drawing unnecessary attention.