How to download Netflix to ipad 3?

I'll start by saying that I have never tried this myself but according to this article (netflix.com), you must have downloaded it when it was compatible with your iOS version.

If your iOS is between 5.0 and 10.3.3 and you have downloaded the Netflix app in the past, see Apple's support site for instructions on downloading an earlier version of Netflix. If your iOS is 11.0 or above, continue troubleshooting below.

That Apples' support site is this:

Redownload apps, music, movies, TV shows, and books from the App Store, iTunes Store, and Apple Books - Apple Support

I don't think there is a workaround if you have never installed Netflix when it was compatible.

Here you go.

Downloading Older iOS 9.3.5 Versions of Apps ONLY Available Now for iOS 10 or Later

There are three ways to get older apps, initially, for older iDevices.

For the iTunes method, carefully read and follow my instructions. This procedure works.

Good Luck to You!

Yes there is.

You might want to save my own link above for future reference about initially obtaining older apps for older iPads.

In regards to Netflix, their older working apps are still available all the way back to iOS 5.1.1.

You marked two posts helpful and solved.

Did you even tap on my link?

All three of those procedures will get you an older version of Netflix for your iPad 3.

All three procedures work.

The iTunes, if you have a computer, just takes a little time to setup, but yields a positive result in getting your iPad 3 an older, compatible version of Netflix.

https://help.netflix.com/en/node/23927