Sentinel works by routing your internet connection via a secure server in a location you select. Connecting to the internet through Sentinel means your real IP address is replaced with one from Sentinel 's network of servers, effectively masking your actual IP address. This alteration makes it appear as though your online actions originate from the VPN server's location, enhancing your anonymity. This capability is particularly useful for circumventing geographical limitations and accessing content from abroad. With your IP address concealed, your online activities become more confidential and secure, thus protecting you from surveillance and potential data breaches.

While Sentinel free service is safe to use, it's crucial to be cautious as not all VPN providers are trustworthy. Understanding how a VPN company sustains itself financially is key. For example, Sentinel VPN offers a free version that provides basic functionality, ensuring everyone has access to secure and private information, regardless of their financial situation. The premium subscription of Sentinel VPN offers advanced features and capabilities, and it's this paid service that compensates for the costs incurred by the free version. Sentinel operates on a "freemium" business model, where basic services are offered for free, while more advanced features require payment.