It seems like you might be referring to a VPN client for macOS. A VPN client for macOS is a software application that allows users to connect to a network and block or block access to a network. These clients are designed to provide a secure way to connect to the internet and protect your privacy.

1. VPN Pro - A free VPN client that offers a range of security features and is widely used for both personal and professional use.
2. VpnMeister - A paid VPN client that provides advanced security features and is suitable for users who want a more secure connection.
3. VPN.app - A free VPN client that is known for its ease of use and security features.
4. Netnui - A paid VPN client that offers a range of features and is suitable for users who want a more secure connection.
5. VpnOptions - A free VPN client that provides a range of security features and is suitable for users who want a more secure connection.

If you're looking for a VPN client for macOS, I recommend checking out these options to find one that best fits your needs.