I use OpenVPN Client. It works really well and supports autoconnect (including at boot) so that you don't need to worry about disconnects. The pro version even

I use OpenVPN Client. It works really well and supports autoconnect (including at boot) so that you don't need to worry about disconnects. The pro version even supports TAP without root. You can find the free version here: https://play.google.com/store/apps/details?id=it.colucciweb.free.openvpn https://play.google.com/store/apps/details?id=it.colucciweb....