I've been speaking via pm with another guy who posted in this thread too. veeru5656 his name is. He says Appodeal will work on iOS but not via XDK. He says u need to use Cordova CLI on a Mac device (or a virtual Mac OS running on VM Ware should apparently also work). But I can't understand the process from his messages.
I think the general process is something like this:
-in ur Mac environment create a new project in Cordova CLI
-Open the project in Xcode and replace the www folder with the www folder from ur exported game (exported as a Cordova proj from C2)
-then build in CLI and that's ur finished project u can upload to the AppStore
He also says you need to use the cranberry Appodeal plugin or he thinks the official Appodeal plugin may also work, but I can't understand from his messages at what point these plugins get included in the process? I guess they get added to the project in Cordova CLI before building or something?
So, I would prefer just to do it all in XDK but if this method above is the only way to get Appodeal on iOS, I'll be trying that.