On two different phones running 8.0.2, the same two programs crash on opening. They are Sky Gamblers Air Supremacy and Call of Duty Black Ops Zombies. Neither app will open on either phone . Anyone else?
My grandson has a game or 2 that have not been updated by developer for iOS8 - they just crash when launched. Not uncommon at all for new firmware and developer's who don't keep up.
It's normal with a new iOS update. As already mentioned some develppers are slow in updating their apps or it maybe Apple is slow in certifying these updates. I suspect they get inundated with updates when a new version of iOS is released so some apps make take time before updates are available for them.