requirements:
- decrypted app
- convert.py
- https://github.com/DanTheMan827/ios-app-signer
- valid dev cert(unfortunately free dev accounts do not work)however you can use a udid registering service for cheap. https://www.udidregistrations.com (Silver or Gold is sufficient) For UDID open System Information app and use the provisiong UDID including the dash and it should be valid
before you start make sure the bin of the decrypted app has a signature blob (Use jtool2(non optional as it generates missing code signature information that ldid does not do when resigning) to sign binary then copy it back into ipa)
for this example i will use Spotify (v8.6.12 v861201032 Univ PI DY ELEVEN os120)-Mila432.ipa
save as tmp.ipa and run python convert.py tmp.ipa
or double click on the tmp.ipa
