vpn- none on iphone
after 15 days of use. the battery drains so that from one daily charge, the iPhone overheats for the 3rd time. vpn is not possible to set as needed. therefore useful, which only spends a few minutes on the network and possibly read, but I arrive for a maximum of 1 hour a day. I don't think you need a VPN or a reason for the iPhone because the phone simply behaves differently