This app can control the helicopter after you connect your iPhone to helicopter by wifi in iPhone setting menu.
This application have 5 parts:
1.On the center of screen: Press button to start the helicopter or turn off the helicopter.
2.On the left screen: This is helicopter's throttle, it can fly the helicopter in the air by move forward and land the helicopter when you move backward of it.
3.On the right screen: This function can control helicopter's direction, you just need to move it to up, down, left or right.
4.On the center of the bottom screen: you can used this trimmer to adjust eh helicopter to left or right when the helicopter is keep rotating in the air.
5.On the upper right conner: You may turn on/off the g-sensor to control your helicopter.