Apps similar to VPNCheck include VPN Lifeguard, which is free and open source. Other options are VPNetMon, TunnelRat, VPNKS and VPN Watcher. In total there are five VPN Services like VPNCheck for Windows, Android, iPhone, iPad and Mac.
To protect yourself when your VPN disconnects. It blocks Internet access and any other specified applications. It prevents unsecured connections after your VPN connection goes down and reloads applications when reconnecting the VPN.
VPNKS is a free, fast standalone Killswitch for Windows that automatically stops all traffic and data from leaking out and exposing your internet activity when your VPN connection fail. When activated, all traffic is blocked and no data will be sent over your unsecure internet...
VPN Watcher is a vpn connection monitoring tool. The program prevents controlled applications from sending any data to network while established VPN connection is down.
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