Ripping from External Mobile data

[The Prawn]

I'm trying to rip models and such from an iPhone game, but the main app data is only 51 MB, but I know that there's gotta be more to the app than just what was given. I'm talking about external data stored on the phone that is downloaded instead of on the main app, itself. I've managed to rip from that kind of data before, but newer versions of iOS require jailbreaking your iPhone, and all the Jailbreak software don't work with iOS 9.2.1...

Does anyone know of a possible alternative way of doing this?