In the compiled real machine version of the. App file, there are two ways to generate an app that can be run by a real machine, one is to pay $99 for a certificate, the other is a way to crack, no longer detailed here, this article assumes you have generated an app package that can run on a real machine (app package is actually a folder)
Assuming the name of this installation package is Hello.app, right-click, select Show Package content, so you can open this Hello.app folder, there is a info.plist file in this folder, open it, add a new key field called Signeridentity, The content is Apple IPhone OS application Signing.
Then drag the. App to itunes to generate the IPA. The default name should be Hello.ipa
If you want to distribute this IPA, you can click the right mouse button on the Hello.ipa file in itunes and select Show in Finder to get the generated IPA installation file.