As it happens, I had already purchased one of the defective apps from the Apple Store. That's no problem. It only cost a few bucks, so I'm not worried. However, I don't think Apple should continue to stock and sell apps that don't work, so I called Apple to find out to whom I should report the problem. To my surprise, it sounded like Apple is saying that it's not their problem and that I should complain to Instagram or the app maker. WHAT!!!
Let me try again. Does Apple have any interest in the quality of the apps they are selling in their App Store? If so, how do I contact the appropriate person or department?
[Edited by Moderator]