What is VPN? VPN is an acronym of Virtual Private Network which secures you and gives you the encrypted connection over less secure network. It means that if you are browsing the things on internet over Public Network, it will create a safe connection by changing your IP address to another location to avoid showing your actual location.
You have probably known it, or just known it at this moment and you have been trying to find VPN client which is suitable to every your requirement, i.e. free to use, no annoying ads, easy to connect or some of locations being able to choose from, YES! maybe ProtonVPN could help you.
A Swiss based VPN, ProtonVPN is not a completely free to use, but a freemuim one coming with several plans such as Free, Basic, Plus and Visionary. It actually comes with Free Plan, then you could try it. This VPN supports varoius platforms like Android, iOS, Windows, MacOS and even Linux.