First, rename the .ipa file to .zip and unzip it, or use the unzip command directly.
An IPA file is structured as a .zip archive. Once extracted, you can modify several components:
The Ultimate Guide to Editing IPA Files: Customizing iOS Apps edit ipa
Use binary modification utilities like optool or insert_dylib to patch the main application executable, forcing it to load your custom library on startup. Repackaging and Resigning the IPA File
Before you can edit an IPA file, you must understand what is inside it. An IPA file is essentially a standard ZIP archive with a renamed file extension. If you change .ipa to .zip , you can unarchive it using any standard decompression tool. First, rename the
: Rename the target file from application.ipa to application.zip .
Choose your development or distribution certificate. Repackaging and Resigning the IPA File Before you
Highlight the folder (do not compress the parent folder itself, only the Payload contents). Compress the folder into a .zip archive. Rename the file extension back from .zip to .ipa . The Crucial Step: Sideloading and Resigning
Select your modified .app bundle inside the extracted Payload folder.
I can give you the exact commands or tool recommendations for your setup.