Re: best VPN for iOS?
Best VPN is subjective... I use Getflix... which is smartDNS +VPN only, VPN only service PIA seems good.
Whichever VPN you choose, do a leak test.... Just because u'r using a VPN doens't always mean your ISP can't see it.
https://dnsleaktest.com
Aside from telling u different IP (it should be different than your ISP if your VPN is working), when u run "Extended test" any results listed, if any of them displays your ISP DNS servers u have a DNS leak..
If u'r are not getting your VPN IP probably, check the "Send all traffic over VPN connection" (Windows users: Use default gateway in TCP IP advanced properties), or OS X under Network, in System Preferences.. Under your VPN connection, Advanced.. (by default, its unchecked)