Caporegime
I've seen people say that on the iPhone app they get messages popping up saying "not available in your area" and/or signs them out. I'd only need it for iPhone as my TV uses SmartTube, as it's way better than YouTube and doesn't have ads.
Can't say i ever had a problem with it. Since I signed up I've been to Singapore, Japan, Italy, Croatia and it works in all the areas, via mobile data, local e-sim or through my VPN on hotel Wifi.