If you purchased apps before:

If you still use a main device on a modern iOS version, you can help preserve iOS 9.3.5 compatibility:

This community effort ensures that classic iOS 9.3.5 devices remain useful as e-readers, music players, gaming handhelds, and offline navigation units.

If you are holding an iPhone 4s, iPad 2, or the original iPad mini, you are likely familiar with the infamous iOS 9.3.5 update. For these devices, this is the "end of the line"—the final software update they can receive. With the App Store evolving rapidly, many modern apps no longer support this firmware.

However, by using IPA files (iOS App Store Packages), you can manually install applications that are no longer available or supported through the official App Store. This guide covers how to find these files and install them safely.

Limitation: Only works if you previously owned the app before the 64-bit transition.