How to Re-sign a ipa file with our apple account and install on physical device for testing , as apps like BrowserStack does, Thanks.
Apple has no supported process for re-signing an .ipa archive. Rather that starting with a .ipa, have you developer send you an Xcode archive (.xcarchive). With that in hand, you can re-sign it easily using the Xcode organiser.
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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"