Fast Charging Checker is a free and open-source application available on the Android platform. The app is designed to play a notification sound when your device is connected to a fast charger. It is a lightweight app that requires notification access but does not collect any user data.

This utility tool is an excellent choice for those who are always on the go and need their devices to charge quickly. The app is user-friendly, easy to navigate, and does not require any special skills to use. It is an excellent tool for those who want to ensure their devices are charging at a fast rate.

Overall, Fast Charging Checker is a simple yet effective app that serves its purpose well. It is free, open-source, and does not compromise user privacy in any way. If you are looking for a tool to monitor your device's charging speed, this app is highly recommended.