There are three main ways to get software onto your legacy device: 1. The "Last Compatible Version" Trick (No Jailbreak)

While many modern apps are too heavy, these versions are known to work well on legacy hardware:

If an app is completely broken (like the old YouTube app's API), you may need a modified IPA file from a community library like the CyPwn IPA Library or IPA Library .

Patched IPAs are modified application files that have been adjusted to run on older firmware or to bypass modern server-side restrictions that would otherwise break the app on legacy systems. In the context of iOS 9.3.5, "patching" often refers to:

Tricking the app into thinking it is running on a newer iOS.