The Android app is actually fun to use, and you got to give TunnelBear credit for really doubling down on its name by really running with the concept. TunnelBear does not currently support torrenting, so if that's an important feature you're best to look elsewhere. If you're only looking for a casual VPN for your phone, TunnelBear is a great free option with affordable pricing for upgrading to the premium service.
However, network performance is another thing entirely. First, keep in mind that if you're using a VPN, you're probably using it at a public location. That Wi-Fi service is likely to range in performance somewhere between "meh" and unusable. So, just the fact that you're remotely working on a mediocre network will reduce performance. But then, if you connect to a VPN in a different country, the connection between countries is also likely to degrade network performance.
CyberGhost gives Mullvad some stiff competition in the speed department, especially for locations in North America and Europe. It does a good job protecting user anonymity, too—requiring no identifying information and using a third-party service for payment processing—albeit not to the same degree as Mullvad. Add to that CyberGhost’s unique, easy-to-use interface, good price, and streaming unblocking (although not for Netflix), and this VPN is a solid choice. (See our full review of CyberGhost.)
When we initially researched and tested VPNs for this guide in early 2018, technical and legal reasons prevented app developers from using the OpenVPN protocol in apps released through Apple’s iOS app store. During 2018, both the technical and licensing hurdles were removed, and VPN providers started adding OpenVPN connections to their iOS apps. We’ve already noted that our top pick, IVPN, has added it, as have ExpressVPN and PIA. In a future update, we’ll specifically test these upgraded iOS apps, but in the meantime the updated IVPN app has worked as promised for several Wirecutter staffers who use it regularly. Because this OpenVPN support makes it much easier for anyone with Apple devices to create a reliably secure VPN connection, we wouldn’t recommend a service without it to anyone with an iPhone or iPad.
In the most recent round of testing, we've also looked at how many virtual servers a given VPN company uses. A virtual server is just what it sounds like—a software-defined server running on server hardware that might have several virtual servers onboard. The thing about virtual servers is that they can be configured to appear as if they are in one country when they are actually being hosted somewhere else. That's an issue if you're especially concerned about where you web traffic is traveling. It's a bit worrisome to choose one location and discover you're actually connected somewhere else entirely.
We like that the company offers a connection kill switch feature and, for those who need it, there's an option to get a dedicated IP address. VyprVPN is a standout in their effort to provide privacy, and thwart censorship. When China began its program of deep packet VPN inspection, Golden Frog's VyperVPN service added scrambled OpenVPN packets to keep the traffic flowing.