Yung KPN at Http Injector ay parehong Gumagamit ng SSH at Si OpenVPN naman ay OVPN.
Speed: Si SSH no limit, si OVPN pwedeng i-throttle yung speed per user. Mas mabilis mag connect kay SSH kaysa kay OVPN. Pati reconnect ssh ang mas mabilis.
Connection Stability: Kung with server at same set up wala naman pinagkaiba.
Config Creation: Yung injector input mo lang yung SSH details etc then export. Samantalang si OVPN need mo i dl yung base OVPN File kasi may certificate,key etc pa na kailangan yun then ieedit mo sya using notepad / text editor.
Security and Reliability: Mas secure si OVPN kaysa kay SSH. Kaso medyo mabagal nga mag connect and reconnect unlike ssh.