It’s time for lunch, so go grab a free sandwich at Subway. To get this deal, use the Subway app and add two sandwiches of your choice to your cart. Use coupon code FREESUB and score a sub for free. The cheaper sub will be taken off, so to get the most bang for your buck, make sure to get two sandwiches of the same size. We don’t know when this deal will end, so grab one while you can.