Regarding web ads redirecting to the App Store
You land on a web page in mobile Safari and all of a sudden you're torn away and dumped into some game on the Apple Store.
We've gotten complaints about this — and experienced it ourselves —*for what feels like a couple years. What's happening is that something is causing a web page, when opened, to immediately redirect you to the App Store, almost always to the listing for a popular game. My guess is they're hoping you're so enticed by the game you download it even after being hijacked, and they get some revenue, direct or affiliate. But it sucks, and even after a couple of years it's unclear how and why it keeps happening.
Full story from the iMore Blog...