VPN AutoConnect is an app for the menu bar that verifies your VPN connection, allowing users to avoid difficult situations brought on by being unaware of VPN disconnection, like file transfers or document retrievals.
VPN Autoconnect worked like a charm until I installed MacOS Sierra. That erased my VPN settings. When I reestablished my VPN using TunnelBlick, VPN Autoconnect was no longer able to see my active VPN. It was great while it worked though!