Vpnchecker

This app helps to find whether there is vpn connection in your device or not. You can try this app to be notified when your device is connected to vpn. It will prevent you from browsing the web without vpn connection. You can try this at least once to see whether it works for you or not. But it is not a vpn network like turbo vpn or others. It is just a tool which is developed in order to notify you whether your device is connected to vpn or not.