Floating Button:AssistiveTouch is an Android application developed by Simi Studio. It is a free utility tool with over 900,000 downloads. The app allows users to have a floating button on their device screen, which can be used to perform various actions. The button can be customized to the users' preferences, such as changing the icon, size, and opacity.

The app offers a variety of features, including quick access to the menu, app shortcuts, RAM cleaner, flashlight, virtual home key, back key, recent apps, last used app, system settings, notification panel, screen capture, screen recorder, power off phone, media control, volume control, and the ability to keep the screen on. The app is also equipped with a touch locker feature to prevent accidental touch when watching videos.

However, to use some of the features, the app requires Accessibility Services, and if the Device Administrator permission is enabled, the user must first manually disable it to uninstall the app. Overall, Floating Button:AssistiveTouch is a useful tool for Android users who want quick access to various features on their device's screen.