iOS cracking scripts

I am jailbroken running iOS 8.1 and was wondering if there are any working app cracking scripts similar to clutch or rasticrac. So far, the ones I have tried do not fully work on iOS 8.1. I do have experience so I do not mind advanced methods. I also do not want an illegal App Store that allows you to download IPAs. Also, are there any free tools for Macs that I could use? Thank you