You know, I get so fed up these days when I come across people blaming other people for everything.
Why on earth are you blaming Sky Demon for this Radiocheck, because the problem that you are experiencing is as a result of something YOU DID !!
"I didn't do anything" I can hear you say. But you DID didn't you?
You personally downloaded the software update from Apple that caused your device to fail. YOU DID THAT not Sky Demon.
My iPad Mini is working fine thank you very much, because I didn't rush to download the update. It's still sitting there on my device ready to be installed, but I have learned that it is wise to wait for some time after a published update to make sure that there are no new bugs that come out with the new software. It happens nearly every time that Apple publish an update, new bugs come out of the woodwork and this time there are quite a lot including problems with other navigation applications.
So I think your are out of order laying the blame on the team at Sky Demon, you should be blaming yourself for rushing into it before doing your homework. 

Apple are still signing iOS 8.2, so for anyone still having this problem, the best advise is to downgrade their iPad.

There are many tutorials on the web.