Freebbble!

“The ultimate template for divinely proportioned apps.” A collection of widths and heights based on the topbar-height of 88 pixels that relate according to the golden ratio.

Golden Ratio Grid System for iPhone 5 is a free design resource made by Dribbble user Tom Reinert. As far as I can tell, its license is Unknown.

Helpful hint: Dribbble users are nice. If the license is unknown, it is usually because they forgot to mention it explicitly; not because they were being stingy. Ask nicely and they will probably allow you to use it.