Until then, the patchers persist—one decrypted IPA at a time.

Yet, these devices refuse to die. Many still use them as dedicated music players, e-readers, baby monitors, or light gaming devices. The problem? Apple’s official App Store has largely abandoned iOS 9. Many modern apps require iOS 10 or later, and Apple no longer signs (allows installation of) older versions of modern apps.

A non-patch method involves downloading apps on a newer device first, then going to the Purchased tab on the iOS 9.3.5 device to trigger a "Download the last compatible version" prompt. Common Sources for Legacy IPAs