Whether you’re looking for the best free unlimited VPN for Android, iOS, Mac, or PC, keep in mind that every free VPN provider has some sort of limitation in place. If you’re looking for a free unlimited VPN, PrivadoVPN and ProtonVPN are as close you’re going to get. Although both of these providers offer a superb level of online protection free of charge, PrivadoVPN caps you at 10GB of free data transfer, while ProtonVPN only lets you connect to medium-speed servers on the free plan.