Get the .apk file of Free VPN -Betternet WiFi Proxy 3.6.5 for free and have a look at users' reviews on Droid Informer. You will need 28 MB to install the app that is built for Android 4.0.3 and higher. The security report proves that this application is safe. Betternet LLC is the developer of Free VPN -Betternet WiFi Proxy which relates to the Tools category.
Samsung and Lenovo users recommend the app.