Using a bluetooth gamepad on IOS in Unity

I’m trying to get a bluetooth gamepad controller to work on iOS. It works fine on Android devices but I cannot get it to work on iOS.

When testing on an iOS 7 device, the game controller works within iOS, enabling you to use the control buttons such as volume and home button, but it does not work in the Unity game.

When testing on an iOS 9 device, none of the controls work (neither in the game nor in the os itself).

Has anybody been through the same problem and may know where I may be going wrong? Does anybody have an iOS game working with a bluetooth controller?

Hello, did you find a solution ?
I’ve started a thread about the same subject yesterday: