The GOLD Plan plan by VPNBaron does have a VPN Client.
It does not have bandwith restrictions, and they don't keep your connection log. They also do have a mobile client and a Kill Switch feature is available.
This plan also comes with the following benefit(s):
Customer Support: 24/7 Customer Support
Server Locations: 18+ Countries
Number of Connections: 3
VPN Protocol: UDP / TCP + SSL & OBFSPROXY