Auto: this is the best choice for most users. Our app will choose the best protocol for you based on your location and server location.
If the Auto protocol does not work for you, please try each of the provided protocols individually.
OpenVPN: OpenVPN is an open-source protocol known for its strong security and flexibility. It's widely supported and can run on various platforms, including Windows, macOS, Linux, iOS, and Android. It's often the preferred choice for its balance of security and performance.
IKEv2 stands for Internet Key Exchange Version 2. It is considered more lightweight and stable than OpenVPN while retaining some customizability. But it is only available over UDP, which is blocked by some firewalls. IKEv2 is one of the newer protocols and has significant strengths, particularly its speed.
IPsec is a suite of protocols that secures the communication at the IP layer by authenticating and encrypting each packet of data. It provides the actual security mechanisms used for protecting the data transmitted over the VPN.
Please note that protocol performance and characteristics can differ by country. Thus, we recommend most users to use Auto so we can choose the best one for your country.