This app uses the VpnService. Usage of the VpnService is required to change the DNS servers for all types of networks (otherwise it would work for Wifi only), as well as offer advanced security features. No actual VPN connection is established and no data leaves the device via VPN. ------ When navigating to a website known by it's name, say example.com, your device ask specific servers - DNS servers - how to address the website. DNS is an old protocol which, except for smaller changes, hasn't b