Here is a list of the supported model(s):
*Requires iOS 9 or later is required to use the Hulu app.
*Requires iOS 10.3 or later to download content in the Hulu app.
- iPad 4th generation and later (including iPad mini, iPad Air and iPad Pro)
- iPhone 5 and later
- iPod touch 6th generation and later
The support for iOS 10 ended on December 8th. You may continue watching on this device, but it may not work correctly.
For more information on how to update iOS, please refer to this Apple support page.
For more information on how to use the Hulu app on iOS, please check a help article: [iPhone/iPad/iPod touch] How does Hulu work?