If you prefer not to jailbreak, desktop utilities can sign the apps using a personal Apple ID.
When building your archive, prioritize applications that defined the mobile landscape during the mid-2010s: ios 7 ipa archive
Creating your own IPA archive from purchased apps is a straightforward process, though it requires a jailbroken iOS 7 device. If you prefer not to jailbreak, desktop utilities
Using apps designed specifically for the iOS 7 design language ensures the UI matches the system software perfectly. The Challenges of Installing Legacy IPAs The Challenges of Installing Legacy IPAs IPA files
IPA files downloaded from the App Store are encrypted with Apple’s , which uses device‑specific keys tied to the user’s Apple ID. To create a redistributable IPA, the encryption must be removed in a process known as “cracking” or “decrypting.”
Have a rare iOS 7 IPA? Contribute to the Internet Archive’s "Legacy iOS Preservation Project" or face the digital dark age.