Scan the QR code on your receipt after you eat. That is the whole thing — no card to carry, and no app required to take part.
The Taco Pass is separate from your points. Every visit you scan adds one stamp, and 6 stamps earn a free taco. Redeeming takes those 6 off your card — any extra visits stay on it — and leaves your points untouched.
No fine print
No membership tiers, and your points do not expire. Your phone number is your account, so you can earn and redeem at the register even without a smartphone.