If you have an old hard drive, a dusty iPhone 4s, or an iTunes backup from 2014, you are holding a piece of digital archaeology. Copy those IPAs. Upload them to the Internet Archive. Share them with the r/LegacyJailbreak community.

To understand the value of an iOS 7 archive, you have to remember what was lost. An iOS 6 IPA contains a UIKit that looks like green felt or wood. An iOS 7 IPA contains UIKit that looks like... light.

Several major repositories host thousands of legacy iOS 7-compatible files. These are primarily found on the Internet Archive

18;write_to_target_document1a;_qvjtaYn2CM34kPIPmemOuQQ_20;56; 0;10c9;0;893;

iOS 7 bridged the 32-bit/64-bit transition. The iPhone 5s (64-bit) could run 32-bit apps via a compatibility layer. However, when Apple dropped 32-bit support entirely in iOS 11, millions of apps went extinct. If you find an IPA labeled "iOS 7," it is almost certainly 32-bit. It will not run on any modern iPhone (iPhone 8 or later) or modern iOS versions.