ExpressVPN is a virtual private network (VPN) service that helps users protect their online privacy and security. It encrypts internet traffic, making it difficult for third parties to track users' activities. With servers in numerous countries, it allows users to access content that may be restricted in their region. The service is compatible with various devices, including Windows, macOS, iOS, and Android. Users can connect multiple devices simultaneously, making it convenient for families or individuals with several gadgets. ExpressVPN also offers a user-friendly interface, making it accessible for both beginners and experienced users.