Are there any free VPN services?
Yes, certain VPN services do not charge for access to their networks, but they are not always reliable.
When something is for free, YOU are the product. The adage holds true for free VPNs. Free servers will only offer a limited number of servers, which means a huge slump in speed and performance owing to user overload.
And to cover their costs, you never know whom they sell your data to.