When comparing Ultrasurf vs VPN.ac, the Slant community recommends VPN.ac for most people. In the question“What is the best VPN provider? ” VPN.ac is ranked 26th while Ultrasurf is ranked 83rd. The most important reason people chose VPN.ac is:
VPN.ac has fast throughput rates.
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.
Cons
Con This app is suspected of malicious behavior
The software allegedly connects to websites of financial and government institutions, and uses the PC for attacks against them. It disables SSL certificate checks and allows man-in-the-middle attacks to steal authentication credentials. It hooks into the browser and uses suspicious compression to hide parts of the program.