Ask Apple to change their policy to allow copyleft software.
It has nothing to do with Apple's policy. The GPL is what's getting in the way: it says you can't impose restrictions on the redistribution of a GPLed application, and the App Store doesn't have any means to even permit redistribution of apps once they're installed.
Seems like the App Store's problem.
Google play store doesn't have that problem.
Apple sells products which they have decided to retain control over after sale.
That is Apple's choice, Apple's policy, Apple's decision. It also conflict with a lot of things, including the GPL.