By following this guide, you should be able to enjoy Netflix on your iOS 9.3.5 device. Happy viewing!
Open the App Store on the newer device, search for Netflix, and tap Get . (You do not need to keep the app on the new device; it just needs to register to your Apple ID account history).
A pop-up will appear stating: "Download an older version of this app? The current version requires iOS 15.0 or later, but you can download the latest compatible version." Confirm: Tap Download .
: On your iOS device, go to Settings > General > Device Management / Profiles . Find your Apple ID, tap it, and select Trust .
How to Install Netflix on iOS 9.3.5: A Guide for Legacy iPads