Meet Gamevice: a cool game controller for iPhone 6s and iPhone 6s Plus that lets you play iOS games like a pro. It comes with dual analog joysticks, A, B, X, Y fire buttons, headphone out, and everything you need to get started. The device has a 400 mAh battery. You can charge your phone when it is inside.
Gamevice is compatible with a wide variety of iOS games. It doesn’t take a whole lot of space either. You can get yours for under $100.