Thunder VPN is a great and lightning-fast free VPN provider app on android platform. You do not have to configure any setting to use this app. Just download the app and tap to connect with the proxy servers. It secures your internet connection by masking the IP address. You can bypass all the block sites and restriction easily with this app. It converts the public Wi-Fi to private connection. It secures your data and all other personal information from hackers. It has powerful servers. It works on all the data connections such as 3g, 4g, LTE and more.