WiFi-UFO is a free mobile app developed by Steven Liu for Android users. It falls under the Lifestyle category and is designed to remotely control four axis aircraft via mobile. The app boasts a range of features including real-time video display, photo and video recording on mobile, and gravity induction mode to control the aircraft.

One of the most notable features of WiFi-UFO is the ability to display real-time video taken by the camera on the aircraft. The video data is transmitted via 2.4G WiFi protocol and can be viewed on the user's mobile device. Additionally, users can take photos and record videos on their mobile device using the app.

Another interesting feature of WiFi-UFO is the gravity induction mode, which allows users to control the aircraft by tilting their mobile device. The app also includes a flight route setting function, which enables users to fly the drone in accordance with the line they draw. Finally, the app supports voice commands to control the aircraft.

Overall, WiFi-UFO is a useful app for users who are interested in remotely controlling their four axis aircraft. It offers a range of features that make it easy to control and view the aircraft's movements in real-time.