Proton VPN is a virtual private network service that provides users with secure and encrypted internet connections. It is developed by Proton Technologies AG, the same company behind ProtonMail, a secure email service. Proton VPN offers features such as online privacy protection by hiding users' IP addresses, accessing blocked or restricted content, and bypassing censorship. It also includes a no-logs policy, ensuring that user activity is not recorded. Subscriptions may offer benefits like access to a larger number of server locations, higher speeds, and support for more simultaneous devices.