VPNetMon is described as 'prevents unsecured connections after your VPN connection went down. It simply closes specified applications when the VPN connection is down' and is an app in the Security & Privacy category. There are five alternatives to VPNetMon for a variety of platforms, including Windows, Android, iPad, iPhone and Linux. The best alternative is VPNCheck, which is free. Other great apps like VPNetMon are VPN Lifeguard (Free, Open Source), TunnelRat (Free), VPN Watcher (Freemium) and VPNKS (Free).