Let's start with the basic idea of internet communication. Suppose you're at your desk and you want to access a website like ZDNet. To do this, your computer initiates a request by sending some packets. If you're in an office, those packets often travel through switches and routers on your LAN before they are transferred to the public internet through a router.
We tested Private Internet Services using its Windows installer, which configures the VPN protocols and provides a simple utility in the task bar to turn the VPN connection on and off. While the interface was spartan, performance was excellent. Our test system consistently maintained over 110 Mb/s download and 19 Mb/s upload speeds with the VPN connection turned on, very close to our usual 125 Mb/s download and 20 Mb/s upload speeds.
If your only streaming a movie from some apk here and there, does it even pay to use a vpn? Seems vpn’s log your real info, you may seem suspicious because if you use a vpn you could be hiding something, it’s really unclear that they protect your identity anyway when push comes to shove. Seems safer to just stream through the apk without a vpn in a lot of ways. Maybe better to just trust your major isp not to bother you then trust a 3rd party vpn.
— Mullvad has added iOS support for the new WireGuard VPN protocol. The service has also added an onion site at http://xcln5hkbriyklr6n.onion/ so that Tor users can get Mullvad accounts and download software completely anonymously. It is also urging users to upgrade their client software to at least version 2018.5, as earlier versions will not be supported after March 22, 2019.
My recommendation, and the protocol I most often choose to use, is OpenVPN. OpenVPN is a non-proprietary, open-source implementation of a VPN communication layer protocol. It's well-understood, well-regarded, generally quite secure, and robust. In addition, it has the benefit of being able to communicate over port 443, which is the standard port for https communication, which means almost all firewalls will allow OpenVPN traffic -- and most won't even be able to detect that a VPN is being used.