To get something for free is great, but I guess when we talk about security it is better to pay a few dollars and feel safe. I don't think that the price should be the main point when you choose a vpn provider. For example, I started using nordvpn free trial, I liked the app, speed and that double encryption thing, and after that free trial ended I bought a 3 year subscription. By the way, a lot of vpns offers discount codes, this one is for Christmas deal, but as I can see it still works: nordvpn.org/VPNHOLIDAY