Section 1:
This app allows users to connect to a variety of VPNs, including OpenVPN (TUN/TAP), SSTP, WireGuard, SoftEther, OpenConnect (ocserv) servers and Cisco AnyConnect SSL gateways. It does not require root access, as the VPN tun device is handled with the VpnService API introduced with Android 4.0 (ICS). The basic OpenVPN feature is free for all, while other protocols and features require a license.
Section 2:
The app offers a range of features, including OpenVPN TAP device support without root permission, OpenVPN VLAN 802.1Q support, OpenVPN Obfsproxy support (obfs2/obfs3), OpenVPN scramble options support, import/export OpenVPN configuration, SSTP EAP-TLS support (Authentication with certificates), SSTP EAP-MS-CHAPv2 support, SSTP MS-CHAPv2/CHAP/PAP support, SoftEther protocol, WireGuard protocol, OpenConnect protocol, Cisco AnyConnect SSL protocol, biometric authentication, port knocking, connect on demand, auto connect on boot, auto connect/pause/disconnect on WiFi