You may wish to uninstall Tunnelblick on Mac, for example, because you have found a Tunnelblick alternative. Learn how to correctly uninstall the Tunnelblick from your Mac.
In this article, you will find two ways to safely uninstall VPN Astrill on a Mac. Quit the Astrill VPN client → remove Astrill.app. Next, remove all useless service files related to Astrill VPN. They are generally stored in the user’s Library folder.