Thanks for that. That's relevant to my question above. It seems to me that introduces a security vulnerability for people like my daughter who spends about half her time in the UK and the rest in Ireland. If she can't update apps, she could be left exposed to security issues until she returns home and manages to get an update.
That's not really good enough from a company that's supposedly all about security. I can just about see a reasoning for not allowing new apps to be downloaded from alternative app stores, but not allowing updates to already purchased apps, wherever they're from, is not good.
