Neither NextDNS nor OpenVPN offers a free trial.
NextDNS is designed for Individuals, Large Enterprises, Medium Business and Small Business.
OpenVPN is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for NextDNS Starts at $1.99/Month whereas for OpenVPN Starts at $75/Month.
Some top alternatives to NextDNS includes PureVPN, ZenMate, FastestVPN, OpenVPN, NordVPN, PrivateVPN, Ivacy VPN, Surfshark, Windscribe, TorGuard, Avast SecureLine VPN, Fast VPN, AdBlock VPN and Planet VPN.
Some top alternatives to OpenVPN includes PureVPN, FastestVPN, NordVPN, Private Internet Access VPN, PrivateVPN, CASVPN, Ivacy VPN, Surfshark, ProtonVPN, ProXPN VPN, Cisco Anyconnect Secure Mobility Client, Avast SecureLine VPN, Fast VPN and Planet VPN.