OpenVPN Connect v 1.1.17 apkis the popular Free Android App .It will work on most of the devices like Samsung Galaxy,Samsung Galaxy Note,HTC,Sony Ericsson,Micromax,Lava,Intex,Karbonn,One plus,Xiomi,Redmi,YU,Vivo,Lenovo,Vibe,and all other Android mobile phones.Tested it on Android version 2.2,4.0,4.1,4.2 jelly bean and 4.4 kitkat,5.0,5.1 LollyPop ,6.0,6.1,Marshmellow,7.0 Nougat
OpenVPN Connect is the official full-featured Android VPN client for the OpenVPN Access Server, Private Tunnel VPN and OpenVPN Community, developed by OpenVPN Technologies, Inc.
* Supports Ice Cream Sandwich, Jelly Bean and higher. Does NOT require a rooted device.
* Easily import .ovpn profiles from SD card, OpenVPN Access Server, Private Tunnel or via a browser link.
* Improved power management – preferences setting allows VPN to pause in a low-power state whenever screen is blanked or network is unavailable.
* Android Keychain integration – OpenVPN profiles may reference a cert/key pair in the Android keychain.
* Supports hardware-backed keystores (such as on the Nexus 7)
* Support for multi-factor authentication using OpenVPN static and dynamic challenge/response protocols.
* Full IPv6 support (at both the tunnel and transport layer)
* Uses PolarSSL (not affected by Heartbleed issue)