A flat-rate, no-account, cash-payable privacy VPN. There is no forever-free tier: Mullvad costs a flat €5/month with no commitment and no discounts for longer terms. Open-source apps on every platform, runs WireGuard + OpenVPN, a strict no-logging policy audited twice, and a 30-day money-back guarantee. No email or personal data required to sign up — you get a random account number.