Privacy Screen FilterGuard is a utility app designed to enhance the privacy of your Android device by adding a customizable overlay that prevents onlookers from viewing your screen. This app is particularly useful when handling sensitive information, such as banking details or personal messages. The core features include a privacy overlay with adjustable opacity, various privacy modes, and eye comfort color options to suit different lighting conditions. Users can easily preview changes in real-time before applying them, ensuring optimal privacy levels.

In addition to its primary functionality, Privacy Screen FilterGuard offers smart automation features that enhance user convenience. Users can toggle the privacy filter with a simple shake, set it to activate automatically when specific apps are opened, and manage battery usage effectively. The app also includes quick access tools like a notification tile, home screen widget, and floating button for easy adjustments. With comprehensive usage statistics, users can monitor their privacy habits, making this app a valuable tool for anyone seeking to protect their personal information.