Smart Rotation is a free utility app developed by NQK dev for Android devices. This app allows you to control screen rotation without the need to swipe down the notification panel. It uses the proximity sensor as an additional button, and when you wave over it, rotation toggles appear.

The app offers several features, including auto-rotation, force portrait, force portrait reverse by pressing twice on portrait icon, force landscape, force landscape reverse by pressing twice on landscape icon, and color-customizable toggles. Additionally, the app has a new additional button for quick action, which can be set to either brightness control or application switching.

To use the app, you need to locate your proximity sensor by waving over it a few times. Once you master it, try several hand placements to know which one makes you feel most comfortable. If the quick action button is enabled, long press on it to activate settings.

Smart Rotation supports Android Jelly Bean to Marshmallow. The premium version of the app offers toggles color customization and quick action button for brightness control or app switching.

Overall, Smart Rotation is a convenient way to control screen rotation on your Android device. With its easy-to-use interface and additional button for quick action, you can customize your screen rotation settings without any hassle.