Maybe. Depending on the application. Some applications are App Store applications (or similar) that have been or will be rejected. If this is one of them, extracting the .app file, then the binary code inside should make it work.
However, many Cydia applications require that they be installed in the "system" directory (/ Applications), so they will not work in the App Store / Developer directories, and may also require root access or access to other files that Apple will deny.
Best of all, if you want to run one of these applications, it is jailbreak.
Grant paul
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