A superb bit of kit. I'm using this instead of the official ExpressVPN app to automatically bring up and tear down my VPN connections. This is because the ExpressVPN app doesn't expose any intents  so connections can't be automated using Tasker. Using OpenVPN for Android and the Tasker OpenVPN Plug-in remedies this deal-breaker. This allows me to automatically disconnect from ExpressVPN when I connect to my home wi-fi (because the whole house is already transparently routed over ExpressVPN via the router behind the cable modem)  and reconnect again when I leave the house and revert to mobile data. You can even select which apps should make use of the VPN  so you can have  for example  a US TV profile for Netflix  Hulu  etc. and a UK TV profile for the BBC iPlayer  ITV Hub  All 4 and My5. The only thing wrong with this app is the lack of a Donate button to reward the author. Please fix this immediately!
April 17 2016