Yes, they allow registration while connected to VPNs.
These are both decent guides:
- https://www.privacyguides.org/en/os/ios-overview/
- https://github.com/iPrivacyGuides/iOS-Privacy-Guide
For your ad blocking question, AdGuard is my recommendation.
cmc
joined 1 week ago
They’re still available for sale and they post development updates every month.
It’s just not a popular device.