Hi! So I have tried three different VPNs (ProtonVPN, ExpressVPN, and SurfShark) for my iPad (iPad Pro 11 inch 3rd generation, software 14.8.1), and none of them have worked for Hulu. I currently live in Spain but I miss all my shows I would watch on Hulu when I lived in the US 
Hulu never says that it’s not playing my shows because of the VPN but with ExpressVPN it said that I couldn’t even login to my account because the credit card information wasn’t updated (it was- this notification didn’t come up when I turned the VPN off or even with other VPNs) and for SurfShark any show or movie I clicked on, Hulu said that they weren’t included in my subscription, which was also a non-issue when I wasn’t using the VPN. I can’t remember what ProtonVPN’s excuse was. And all of these VPNs had been just downloaded, I cleared my browsing history and cookies and caches, I tried disconnecting and reconnecting the VPNs, all to no avail. Does anyone know how to solve this? I have little confidence that any of the aforementioned VPNs will work on my iPad for Hulu under any circumstances, so does anyone know of a different VPN that will? TIA!
Minor update: I just checked and ExpressVPN does work for Netflix. I changed my location to the UK and I was able to access titles that are only available there.