The first official PlayStation-friendly iPhone controller is a Backbone One - The Verge

Sony partnered with Backbone to make a PlayStation version of the One mobile controller for iPhone. It has the same $99.99 price, and feature-wise, it’s identical, but it has PlayStation-specific buttons.

Introducing Backbone One – PlayStation Edition, an officially

Backbone One Controller - Black - Apple (UK)

BACKBONE One Mobile Gaming Controller for iPhone

BACKBONE One Mobile Gaming Controller for iPhone

NEXT LEVEL iPhone Gaming - Backbone Controller PlayStation Edition

Buy Backbone One - PlayStation Edition Mobile Controller iPhone

Backbone One PlayStation® Edition - iPhone Game Controller

NEXT LEVEL iPhone Gaming - Backbone Controller PlayStation Edition

Backbone One Controller - Black - Apple (UK)

Sony PlayStation Portal review: flawed but fun - The Verge

Backbone One x PlayStation®

BACKBONE One Mobile Gaming Controller for iPhone (Lightning