Many free VPNs log user activity and sell it to third-party advertisers to cover operating costs, which fundamentally contradicts the goal of privacy.
By routing traffic through a server, your real IP address is hidden, which prevents Internet Service Providers (ISPs) and websites from tracking your physical location. The "Free" VPN Paradox amanvpn-free-vpn-protects-data-privacy
To write a comprehensive paper on AmanVPN, you should verify its specific claims against independent audits: Many free VPNs log user activity and sell