See my response to the other comment about them using private APIS. Basically, we would have to try and guess which APIs they were accessing under the hood.
But you are right, this would def be a considerable effort for someone not in the jailbreaking space. I would love to hack it up, but unfortunately haven't dabbled in JB dev since 2011.
That's why I posted the comment to HN. In hopes it might inspire someone in that space to build it. Might also be worth jumping in the theos IRC channel. For someone with the toolchain already set up and a jailbroken iOS device, the code is actually pretty trivial.
This method would be a waste of time and energy. Just reverse the app and find it out. No need to play it like a binary is a magic black box that's impossible to inspect.
But you are right, this would def be a considerable effort for someone not in the jailbreaking space. I would love to hack it up, but unfortunately haven't dabbled in JB dev since 2011.
That's why I posted the comment to HN. In hopes it might inspire someone in that space to build it. Might also be worth jumping in the theos IRC channel. For someone with the toolchain already set up and a jailbroken iOS device, the code is actually pretty trivial.