TunnelBear and Hotspot Shield are two well-known providers that offer limited free VPN services and unlimited data and extra benefits when you pay. Both VPNs provide applications for Windows, Mac, Android, iOS, and a browser extension for Chrome. TunnelBear offers an additional extension for Opera. Both TunnelBear and Hotspot Shield employ strong 256-bit encryption and allow you to use five simultaneous device connections per account. Hotspot Shield has servers in 25 countries, while TunnelBear has servers in over 22. Both VPN providers offer unique features to improve the VPN experience. TunnelBear offers GhostBear, a double VPN you can use to bypass content censorship. Meanwhile, Hotspot Shield offers “Catapult Hydra,” a data compression technique used to provide faster VPN service. Hotspot Shield offers a 45-day money-back guarantee and you can test the VPN with its free services, while TunnelBear does not offer a money-back guarantee.