As far as I know all of this is possible only on a Jailbroken device. You can include any 3-rd party libraries to the app - that's great, but you will also need to include some of them into the system which you can't do unless you Jailbreak. So no luck, but! There's always a BUT :)
You can try mirroring your iPhone's screen to your Mac or PC via AirPlay mirroring to Reflector or X-Mirage, record the session and then extract images from it in any video editor.
Hope that helps