ProtonVPN Review

In this ProtonVPN review, we explain why Proton is considered the Best Free VPN of 2020 and we take a look at its excellent premium service.

ProtonVPN is a Swiss-based no-logs VPN service by Proton Technologies AG, the company behind the innovative and highly respected privacy email service ProtonMail. Proton is headed by Harvard PhD candidate and CERN researcher Andy Yen, so it is no surprise that ProtonVPN is a very carefully thought-out product.

Our Score
4.55 / 5
Readers' Rating
5 / 5
$3.29/mo - $5.00/mo
Free option
Simultaneous connections
Server Locations
54 countries
Switzerland SpeedTest (average)
53.4 Mbps
Available on:
Works with:
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1 User Reviews

on 2020-06-19 20:38:45.
Overall score: 5
I've been using Proton VPN for over a year & have never had any issues with their service. It's superb, free & highly rated by everyone. I also use the free Email service as I live on SSI & can't really afford to pay for my privacy. So I'm extremely grateful for their help.
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Swiss-based Proton Technologies AG has now also introduced a Virtual Private Network (VPN) service. Given the deservedly good reputation of ProtonMail, it is not surprising that expectations for ProtonVPN are very high. Read on to find out if ProtonVPN lives up to these expectations!


ProtonVPN offers four distinct plans, each of which offers a 20 percent discount if you purchase an annual subscription (except for the Free VPN plan, of course), or a generous 34% discount if you buy a 2-year subscription.

Free Plan

ProtonVPN won our Best Free VPN 2020 Award for good reason. Unlike most other “free” VPNs, it provides a largely unlimited service which is so good that many users may feel no need to upgrade to a more premium plan.

The primary limitation is access to only seven VPN servers located in Japan, the Netherlands, and the United States.

There are no bandwidth or speed limits, although the inevitable increased load on the free server’s means that speeds are not as good as when using ProtonVPN’s premium servers (at least in theory – in practice we found free servers to be almost as fast as the premium ones!).

Free users cannot use this VPN for torrenting.  Only one simultaneous connection is allowed, but there is nothing to prevent you from signing up to multiple free accounts.

ProtonVPN ExpressVPN CyberGhost VPN
Amazon Prime

In the past, it was necessary to verify free accounts with an SMS message sent to your phone, so we are pleased to note that it is now possible to verify accounts using just an email address. And a disposable email address works just fine for this.

Basic Plan

The main limitations for most users with this plan are only two simultaneous connections and no access to ProtonVPN’s special streaming servers. You otherwise get access to all of ProtonVPN’s high-speed standard server network, including servers where P2P torrenting is allowed.

Plus Plan

This is the main plan with 5 simultaneous connections and access to all of ProtonVPN’s features.

Visionary Plan

This is the Plus plan with a subscription to the ProtonMail Visionary Plan and an additional five simultaneous connections thrown in. It has to be said that the Visionary Plan does not make strong economic sense for most users when you look at the regular pricing for ProtonMail, so is probably only likely to appeal to businesses and those who wish to support Proton above and beyond the call of duty.

If you sign-up for the Free Plan then you are automatically offered a 7-day 100% free trial of the Plus plan. This is fantastic because getting a VPN free trial without entering credit card details is hard to come by.

ProtonVPN accepts payment via card or PayPal. It is also possible to pay via Bitcoin once have an account. Not so well advertised is the ability to pay in cash or via direct bank transfer if you contact support.

Supported Payment Platforms



Simultaneous connections 10
Total servers 1048
Server Locations 54
Split tunneling

ProtonVPN offers various plans with higher-priced plans providing access to a greater number of features, as shown below:

This is a review of ProtonVPN's "Plus" plan. This provides full access to all of ProtonVPN’s mainstream features:

  • No logs (see the Privacy and Security section below for full details)
  • 10 simultaneous connections
  • P2P torrenting allowed on selected servers (including US servers)
  • Full access to all 801 servers  in 63 locations in 50 countries
  • Full access to Secure Core and onion servers
  • Tor through VPN
  • Transparency report and warrant canary
  • Unblocks US Netflix and many other services (paid plans only)
  • Open source apps
  • Alternative routing through third party networks (optional)

All servers used by ProtonVPN are bare metal single–tenancy physical servers. To deal with a surge in usage thanks to the COVID-19 crisis, ProtonVPN has increased its server capacity. Proton is also donating spare computing resources to [email protected], a project run by the University of Washington that predicts the atomic-scale structure of important coronavirus proteins.

Secure Core

This is a “double-VPN” feature aimed at protecting users from time correlation attacks, which basally just means monitoring connections as they enter and leave a server in order to correlate them with behavior of interest on the internet.

Such attacks are not easy to pull off anyway, but routing connections through two servers located in different jurisdictions makes an already hard job even harder.

ProtonVPN Secure Core

It is still possible to perform traffic analysis on the initial Secure Core server, but ProtonVPN has mitigated against this by locating these only in countries with very strong privacy laws and by protecting them with a very high standard of physical security.

Furthermore, “Secure Core servers are connected to the internet using our own dedicated network with IP addresses that are owned and operated by our own Local Internet Registry (LIR).”

Secure Core is undoubtedly unnecessary overkill for the vast majority of VPN users but does provide meaningful extra privacy for those concerned about targeted surveillance from state-level actors.

The mark of a private VPN service is privacy by design, and Secure Core shows that a lot of thought has been put into designing ProtonVPN.

Tor over VPN

ProtonVPN allows you to transparently connect to Tor (onion) servers through the VPN. In this configuration, you connect first to a VPN server, and then to the Tor network before accessing the internet.

This makes connecting to the Tor network very easy and means you do not need to install Tor Browser. It prevents your ISP from knowing that you are using Tor, hides your real IP address from the Tor entry node, and allows you to access Tor Hidden services (.onion dark web sites).

It should be noted, though, that a similar effect can be achieved by using Tor Browser when connected to any VPN service. Indeed, this configuration is more secure than the Tor over VPN setup offered by ProtonVPN.

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Open source

All of ProtonVPN's apps are fully open source. ProtonVPN says that it has been audited by SEC Consult, although as far as we can tell, these audits (or even their summaries) have not been made public, which is a shame.

We are big fans of open source, but a VPN provider can see what you get up to online anyway, so from a security perspective, the main advantage is simply that the code can be checked for flaws by anyone qualified to do so. 

Speed and Performance

ProtonVPN ExpressVPN CyberGhost VPN
IPv6 leak detected?
WebRTC leak detected?
IPv4 leak detected? SpeedTest (max/burst) 490.4 565.7 556.2 SpeedTest (average) 53.4 60.3 63.92

At the time of writing this review we only have a few days’ worth of speed test results available, so we will need to update this section once we have collected more data.

What we do have shows average speeds of 15.2 Mbits/s, and max speeds of 73.9 Mbits/s. Which are perfectly acceptable, but nowhere near as good as the fastest services out there. That said, as our more informal tests below show, real-world performance is strong.

An average DNS lookup time of 0.94 seconds is somewhat on the slow side, while a 4.1 second connection time is about average.

It’s not nearly as scientific as our full speed tests, be we also wanted to get a rough idea about how using the free service and Secure Core affects internet performance. Tests were performed from the UK.

Review of ProtonVPN speeds

As we can see, the difference between using a free and non-free server in the Netherlands is negligible. Given that our data was being routed to Belgium via Iceland, we are also very impressed at how fast Secure Core is.

We detected no IP leaks of any kind in Windows and macOS, including WebRTC and IPv6 leaks. We cannot currently test IPv6 on mobile devices but detected no IPv4 WebRTC leaks in iOS or Android VPN apps.

Does ProtonVPN unblock Netflix

ProtnVPN tells us it's Plus and Visionary plans (only) now unblock Disney+, Netflix (US, UK, and Germany), Amazon Prime Video (US and UK), HBO Now, Hulu, and ESPN (but not BBC iPlayer). We haven't tested all of these, but can confirm that ProtonVPN unblocks the US Netflix catalog. 

Ease of Use

Custom VPN apps are available for Windows, macOS, Android, and iOS. A command-line Linux script is also available for auto-configuring and controlling OpenVPN (which must be installed separately, along with various other packages). A manual IKEv2 setup guide is also available for Linux.

We are pleased to note that the ProtonVPN website and all its apps are now available in English, Dutch, French, Italian, Polish, Spanish, and Portuguese.

The ProtonVPN Windows Client

The Windows VPN client is smart looking and provides a ton of useful information. The cool-looking server map is mainly for show, but once connected, the app shows useful session traffic statistics. The Windows app uses the OpenVPN protocol (UDP or TCP).

ProtonVPN Windows client

Selecting a country will auto-connect you to a server in that country – you can specify by speed or randomly. Alternatively, you can select individual servers. These are all clearly labeled whether they are available to free users, can be used or P2P, or support Tor over VPN. They also show server load to help you pick a fast server.

ProtonVPN Windows features

The kill switch is firewall-based, but does not use the Windows system firewall. This means if the OpenVPN daemon suffers a crash then your real IP will be exposed. The kill switch otherwise works well. DNS leak protection is enabled by default, and as we have seen, it works well.

Unique to the Windows app is split tunneling. This allows you to decide which apps do or don’t use the VPN, and to exclude or include specified IPs. It is worth noting that split tunneling does not work with sites or services that resolve to multiple domains, which includes Netflix, Amazon, BBC iPlayer, and many other popular streaming services. But this a shame, but is an inherent limitation of the technology. This VPN will also enable you to unblock YouTube videos that are restricted within your region,

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Other Platforms

The macOS, iOS, and Android apps use the IKEv2 VPN protocol (with beta OpenVPN support now available in the iOS app).

The macOS VPN app now features a kill switch. The mobile apps don't, but do have “Always-on VPN,” which re-establishes a dropped VPN connection quickly and automatically.

A leak is still possible while this happens, however, although Android 7.0+ users can also manually enable Block connections without VPN in their system settings to create a proper kill switch.

The OpenVPN command-line Linux app has recently been rewritten and now features a kill switch and split-tunneling. 

Customer Service

Other than an FAQ-style support page, which is not extensive but which does seem useful, support is only available via email and can take a day or two to respond (about one day in our experience) We were nevertheless impressed by the quality of the answers when they arrived.

Privacy and Security

ProtonVPN ExpressVPN CyberGhost VPN
Self-hosted/Proxied DNS IGNORE Yes Yes Yes
Kill Switch
Bare metal or virtual servers IGNORE Bare metal A combination Bare metal
Obfuscation (stealth)
IPv6 leak protection
WebRTC leak protection

Logging Policy

ProtonVPN logs a timestamp of the last successful login attempt. This is stored indefinitely but is overwritten each time you log in. By default, IPs are not logged. This logging setup meets our VPN logs criteria, as is poses a minimal threat to users’ privacy.


Switzerland is generally regarded as a good place to base a privacy company thanks to its strict privacy laws, the fact that it is not subject to EU legislation, and is not a member of the Five Eyes (or even Fourteen Eyes) US-led spying alliance.

On the other hand, Switzerland has passed some alarming new surveillance laws. These require Internet Service Providers (ISPs) and telecoms operators to store detailed metadata connection logs for 12 months. What isn't clear (because the wording of the laws themselves isn't clear) is whether these logging requirements apply to email and VPN services.

Proton says it has received assurances from both the Swiss government and its own lawyers that the new laws do not apply to VPN or email services based in the country, but on both counts, it has been unable to provide hard evidence of this.   

Protocols and Encryption

ProtonVPN ExpressVPN CyberGhost VPN
Other protocols -

The Windows client and Linux script use OpenVPN, while the macOS, Android, and iOS VPN apps use IKEv2. OpenVPN is known to be highly secure if properly configured, while IKEv2 is theoretically very secure and is usually faster than OpenVPN. ProtonVPN uses the following OpenVPN settings:

Data channel:  an AES-256-CBC cipher with HMAC SHA-512 hash authentication.

Control channel: ProtonVPN supports a number of cipher suites, the weakest of which is an AES-256 cipher with RSA-2048 handshake encryption and HMAC SHA-1 hash authentication. Perfect forward secrecy is provided by a Diffie-Hellman key exchange (key length unknown).

Even at its weakest settings, this setup is secure. IKEv2 uses an AES-256 cipher with RSA-2048 handshake encryption, which, again, is secure.

Other stuff

As already mentioned, ProtonVPN uses only bare metal servers, and none of the software we tested suffered IP leaks of any kind. It is also possible to pay for the service in Bitcoin and even cash.

Obfuscation tech for evading VPN blocks is limited to using OpenVPN TCP (presumably port 443) to disguise VPN traffic as regular HTTPS traffic. This can be quite effective but is defeated using even fairly basic Deep Packet Inspection techniques.

The website uses a number of trackers, including Google Analytics (GA). Proton has told us, however, that GA is not used on sensitive pages.

ProtonVPN publishes a transparency report and operates a warrant canary. A transparency report is nice, but still requires trust in Proton to report all incidences. According to ProtonMail’s similar transparency report, Proton has complied with a couple of requests for data that weren't backed up with a valid court order. In both cases, the circumstances appear to justify such a decision. It seems that ProtonMail was able to supply very little information, anyway.

We are somewhat dubious about the real value of warrant canaries, but many people find them reassuring.

Final thoughts

It is very hard to find any real fault with ProtonVPN. It is a fast and secure VPN service with lots of servers, some innovative ideas, and great software. It also shows a strong dedication to privacy, as befits the fearsome reputation ProtonMail has built in this regard.

Our only real criticism is that we would like to see proper kill switches in macOS and iOS, although this issue is mitigated to a certain extent by the “Always-on VPN” feature in both apps.

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Written by: Douglas Crawford

Has worked for almost six years as senior staff writer and resident tech and VPN industry expert at Widely quoted on issues relating cybersecurity and digital privacy in the UK national press (The Independent & Daily Mail Online) and international technology publications such as Ars Technica.


on July 3, 2020
Would you guys mind explaining the difference between a VPN with port selection and port forwarding vs one that doesn't have these features? Is that something users should watch out for when choosing a VPN?
Ray Walsh replied to .
on July 9, 2020
Reply Port selection is a feature that allows you to choose which port in your router your traffic leaves via. This allows you to do things like conceal OpenVPN traffic as HTTPS or get around firewall conflicts that stop the VPN from working (by opening a port on your firewall and setting the VPN up to use that port).
Fred Last
on December 14, 2019
Been using the free version and find it very good for a free service. I'm not tormenting or using Netflix. Looks fairly expensive for the paid version.
on October 26, 2019
For the moment I bought a subscription with vpnproton I must say that I am very well.
on February 11, 2019
Good security, slow speed.
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