That seems more pedantry from the FSF than anything else.
You are perfectly free to distribute the source code to an app you publish to the App Store. The fact that binary compiled from said source code is digitally signed is ... neither here nor there.
By that rationale, PGP signing source code would fall afoul of the same, after all, which is the bit that is compiled - the signed code, or the unsigned code?
>You are perfectly free to distribute the source code to an app you publish to the App Store.
But the GPL states that when a user receives a binary, they may request the complete corresponding source code to that software. That doesn't mean most of the code, minus this proprietary bit that handles DRM.
By that reasoning, you couldn't use any compiled GPL software on Windows, either, since the code will be linked with Microsoft's runtime libraries (which are decidedly not FOSS).
You are perfectly free to distribute the source code to an app you publish to the App Store. The fact that binary compiled from said source code is digitally signed is ... neither here nor there.
By that rationale, PGP signing source code would fall afoul of the same, after all, which is the bit that is compiled - the signed code, or the unsigned code?