When comparing VPN.ac vs ProtonVPN, the Slant community recommends ProtonVPN for most people. In the question“What is the best VPN provider? ” ProtonVPN is ranked 9th while VPN.ac is ranked 26th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Fast
VPN.ac has fast throughput rates.
Pro Solid encryption
Pro Six simultaneous connections
Up to six devices can be connected to the service in parallel with one account.
Pro Great support
Very quick and professional support and easy to use ticketing system.
Pro Optional double hop server for advanced anonymity
Pro Outside "Five Eyes"
Based in Romania* the service is outside of the jurisdiction of Five Eyes.
*http://nomadcapitalist.com/2013/12/15/top-5-best-countries-host-website-data-privacy/
Pro Easy to use
Especially the mobile client is very user friendly. The upcoming version of the desktop client is following suite regarding UI.
Pro You can pay with bitcoin or cash
Pro No logs
They have a no-log policy.
Pro Great free service
For the free plan, you get unlimited data and fast speeds.
Pro Based in Switzerland
Which has good privacy protection laws.
Pro "Serious"
They believe that online privacy and security is a fundamental human right.
Pro Free plan is very busy, sometimes unavailable lately
Cons
Con Free plan is very slow sometimes
Con It's not working in China
Con Blocked on quite a lot of networks
Quite a lot of admins despise VPNs and blocked this one on their networks.
Con It's free
If you're not paying for the product, you're the product.