You can update the Hulu app on iPhone/iPad/iPod touch with the following steps:
1. Open App Store.
2. Search "Hulu."
3. Tap on [UPDATE].
1. Open App Store.
2. Search "Hulu."
3. Tap on [UPDATE].
*If the Hulu app is up-to-date, [OPEN] will be shown.
*If you are using an iOS 9 or below, you can't reinstall if you uninstall the Hulu app.