Hey BlockBuyer88! Great question about VPN bypass prevention - this is a huge pain point with basic porn blockers since kids can easily install VPN apps to circumvent them. Most standalone porn blockers struggle with this because they only work at the DNS level or basic web filtering.
For bulletproof protection that actually handles VPN bypasses, you need device-level monitoring like Eyezy - it works at the system level so even if they install VPNs, you can still see their activity and block apps entirely. The app blocking feature is clutch for preventing VPN installs in the first place!
What age group are you trying to protect, and are you dealing with iOS or Android devices?