Hiboy S2 is a free Android app developed by Freeman Intelligent Power INC. It is designed to connect to your Hiboy scooter via Bluetooth and provide you with essential information about your vehicle. With this app, you can easily monitor your scooter's temperature, power, speed, and current. You can also control your scooter's power, switch machine, highest speed, steering sensitivity, and more.

The app's user interface is intuitive and easy to navigate. Once connected, all the information about your scooter is displayed in real-time, allowing you to make informed decisions about your ride. Whether you're a beginner or an experienced rider, Hiboy S2 is a must-have app for anyone who wants to get the most out of their Hiboy scooter.