: Inside the extracted folder, there must be a folder exactly named Payload (case-sensitive).
At its core, an .ipa file is essentially a renamed .zip archive. However, simply renaming any zip file to .ipa will not work. According to Wikipedia , a valid IPA must contain a binary and be stored in a specific bundle format compatible with iOS, iPadOS, or ARM-based macOS. The Requirements for Conversion convert zip to ipa work
zip -qr output.ipa Payload/
Always test your converted IPA using a sideloading tool like AltStore before distribution. And if the conversion fails, revisit the signature and folder structure—those are the two pillars that make an IPA work. : Inside the extracted folder, there must be