If you have the Bluetooth Controller it's also available as an iPhone app. For $50 — a price that gets discounted regularly — the 8BitDo Ultimate 2.4g Controller is definitely the best iOS ...

Save up to 20% on one of the best bluetooth controllers on the market with 8BitDo's Black Friday discounts through multiple ...

or native Android/iOS games that support controllers. You can also collapse the controller down and use it separately with your phone, Xbox, or Windows. PowerA MOGA XP7-X Plus Bluetooth Controller ...