: ExpressVPN is a service-based product, not just a standalone app. To use their servers, your account must be verified on their side. A "crack" might change the appearance of your local app, but it cannot force ExpressVPN’s servers to give you an encrypted connection without a valid, paid subscription.
: Services like Proton VPN or PrivadoVPN offer legitimate free versions with no data limits or strong privacy policies. : ExpressVPN is a service-based product