The concept of free VPNs seems very attractive until you realize that it is not. A free VPN is very unreliable and may not be able to do most of the tasks you intend the VPN to do. These protocols have highly limited server support, are unreliable, have data caps, and depend on ads to run their services. On the other hand, subscription-based VPNs offer you the guarantee of a secured and unlimited browsing experience.