PIA's Android app is easy to use with an abundance of options and settings you can tweak. It's missing the neat favorites system that some other VPN providers have, but there is a whole bunch of other features. You have port forwarding support, proxy support, UDP and TCP protocol settings, you can define local and remote ports, choose custom encryption and handshaking methods, even vibrate the handset to indicate when you're connected. You also have auto-connection whenever you join a VPN and a kill switch.
Read full article : Top 10 Best VPN For Android (Free & Paid Apps) 2019
While there is no free trial, the subscription is fairly affordable no matter what plan you choose. Obviously, the 2-year plan gives you the best savings and you also get three extra free months.