Viscosity software (version 1.4) is a VPN client for macOS and Windows that provides secure and reliable connections. The software features a simple and intuitive interface, allowing users to easily connect to their VPN service. It supports a wide range of VPN protocols, including OpenVPN, L2TP/IPsec, and PPTP, and includes advanced features like DNS leak protection, IPv6 leak protection, and split tunneling. Additionally, Viscosity allows for the creation of multiple VPN connections and offers extensive customization options for advanced users.