When I open iMovie, GarageBand Keynote

6+ 128g iOS_9.1 iMovie GarageBand etc Apps Quit on Launch

I recently got a new iPhone 6s+ 128 with latest iOS_9.1.(2??) (updated to latest versio) it came with Keynote, iMovie, GarageBand & Pages apps already installed on it when I brought but when i tried/try to open any of these the apps the screen goes Grey & Quits / Launch, I'm new to all this so I don't understand what happened/happens nor do I own a Computer/Laptop to help sync anything, to be really honest I don't really know what syncing is...(im certainly not a Gen_Y or newer generation obviously) So if someone could help me understand this & how to fix this problem I would really appreciate it...