Button Mapper is an application designed to customize and remap hardware buttons on Android devices. It enables users to assign different functions to physical buttons like volume keys or the Bixby button, improving device usability and providing a more personalized experience.

Button Mapper operates by intercepting button press events and associating them with user-defined actions. After installation, users can configure their buttons via an easy-to-use interface, choosing from options such as launching apps, toggling settings, or creating custom actions.

Yes, Button Mapper is generally safe to use because most features do not require root access. For advanced functions like remapping the Bixby button on Samsung devices, root access might be necessary. Always download the app from trusted sources like the Google Play Store to ensure security.

While designed to be efficient, running any app in the background can potentially affect performance and battery life. Users typically experience minimal impact with Button Mapper, as it is optimized to operate without excessive resource consumption.

Button Mapper supports a broad range of Android devices and versions. However, compatibility may vary based on manufacturer and model. It's advisable to check the app's description on the Google Play Store for specific compatibility details before downloading.