I have a feeling there is something wrong with how CrackerXI / AppCake signs the IPA, both the CrackerXI 1.1.5 and AppCake.
I exported an APP with CrackerXI 1.1.5 using the recommended procedure of downloading the IPA via iTunes, etc... (I am running on iOS 11.3.1)
then i took the exported/dyprypted IPA file to another iPad I own (iOS 12.01) and tried installing it with iFunBox.
it installs fine, but the APP crashes immediately when you open the APP.
the next thing I did, I imported the IPA file to AppCake (v6.0.9) and installed it through AppCake. the same, It crashes upon opening the App.
now here is the weird thing , and that is why I think it is due to a faulty signing. if I take the same IPA and install it using "Filza" (v3.6.4 - they added the Signing Apps function during installation), it works perfectly...
the Application I was trying it on:
https://itunes.apple...-fd/id446912582