This app is a plug-in app, it can not work independently, thisappis not developed by OpenVPN Technologies, Inc. It is recommendedtoinstall OpenVPN official client "OpenVPN For Android", thisappwill send "import VPN profile" and "connect" command to"OpenVPNFor Android" app. "OpenVPN for Android"download：https://play.google.com/store/apps/details?id=de.blinkt.openvpn***How to use *** As "OpenVPN For Android" plugin as an example:1.Install this app and "OpenVPN For Android" app. 2. open thisapp,click the Refresh button, the new VPN server ip will appearlater.3. Click on "Play" button , the IP address of OpenVPN profilewillbe save, import and start to connect to the server by passcommandto "OpenVPN For Android" app. 4. If you're lucky and freeVPNserver is not busy, your device will be successfully connectedtoVPN server. *** common problem *** 1. "Trust this program" cannottick? >> Installation of the software conflict, checkwhetherthe installation called "blue light filter" software, pleasetry tostop it (or temporarily removed) 2. Can't connect to server,showerror: "PolarSSL: SSL read error : X509 - Certificateverificationfailed". >> Some servers may not work verystable, press the"reload" button to get new server ip to connect.This free app notable to guarantee the quality of service.Tutorial:http://max-everyday.com/2017/04/japanvpn-tutorial/