It's not 3 months for free on top of VyprVPN annual subscription. It's 25% off VyprVPN which equals 3 months for free if you buy their annual subscription. In other words, if you pay 25% less comparing to their regular price, you essentially get 3 months for free because 3 months is 1/4 of the 12 months.
SPECS:
- 700 servers, 47 countries
- OpenVPN, L2TP/IPsec, PPTP, Chameleon
- Chameleon can bypass virtually any firewall so it's very handy in China, Iran and similar countries, or on school/corporate WiFi
- great for gaming
- software for Windows, Mac, Android, iOS
- 2-5 simultaneous logins
- based in Switzerland
- torrents not allowed
If you're not familiar with the provider, you can read more details at http://cryptmode.com/vyprvpn-goldenfrog-review/
I doubt that anything can 'bypass' the Great Firewall of China. It's tolerated until you become person of interest and then company is ordered to decrypt interesting traffic.