You can use several services on Android Devices likes Samsung , HTC , LG , and more ....

Cisco VPN on Android ( Recommended )

Cisco VPN is an SSL VPN Services. Its purpose is to be a secure, small, fast . Data transport over TCP (HTTPS) or UDP (DTLS or ESP).

How to Download and use Cisco VPN on Android

Open VPN on Android

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You can use Open VPN in 2 ways , depending on your location internet service UDP or TCP

How to Download and use OpenVPN on Android