GM-WiFiUFO is a free Android app developed by SteveChan that allows users to control their 4-axis aircraft through WiFi on their smartphone. The app also provides real-time video streaming from the aircraft, allowing users to take photos and save videos directly to their device.

The app's user interface is simple and easy to navigate, with clear instructions on how to connect to the aircraft's WiFi network. The video streaming quality is impressive, providing clear visuals of the aircraft's surroundings. Additionally, the app's control system is responsive and intuitive, allowing for smooth and precise movements of the aircraft.

Overall, GM-WiFiUFO is a great app for anyone looking to control their 4-axis aircraft through their Android smartphone. With its real-time video streaming and intuitive control system, users can easily capture stunning aerial footage.