Grubhub has launched Perks, an in-app feature that will provide hundreds of millions of dollars in free food to loyal customers. 

"Restaurants have always used free food as a perk for their VIP diners -—to keep them happy and coming back," Matt Maloney, founder and CEO, said in a company release. "We have now extended this practice to Grubhub diners by building loyalty tools so our restaurant partner can promote their restaurants more aggressively on our marketplace and reward their best digital diners as well."

Users will be able to redeem exclusive food rewards available only through Perks, including Shake Shack, Just Salad, Honeygrow and the following: 

• Free cheesy gordita crunch from Taco Bell
• Free 12 Cheddar Bay Buiscuits from Red Lobster
• Free 20-ounce smoothie from Smoothie King 

Cover image: Courtesy of Grubhub