IKEv2/IPSec : Used for Android, iOS, and macOS apps, it offers increased stability and faster speeds than OpenVPN. Wireguard is another VPN protocol in development, which ProtonVPN has supported. It offers unique features, such as maintaining VPN connections when changing Wi-Fi networks or VPN servers. Wireguard is available from some VPN providers but has not yet met ProtonVPN's security standards.
