With the ink dry on new ownership by Just Eat Takeaway, Grubhub on Monday took a shot at competition by launching a new guarantee promising consumers on-time delivery at the lowest delivery price, or the diner will receive perks for free food.

Calling it the Grubhub Guarantee, the Chicago-based delivery provider said the promise builds on the recently launched Grubhub Direct service, which allows restaurants to build an online presence without having to pay commission on delivery orders that come through the site.

“Restaurants work incredibly hard to create the best experience for diners, and we are helping to safeguard the reputations of our restaurant partners through Grubhub Guarantee,” said Adam DeWitt, Grubhub’s new CEO, in a statement. “We have been building and refining the online ordering and delivery process since 2004, and restaurants rely on us to connect them to diners and help them grow. We take restaurants’ brand reputations seriously and believe Grubhub Guarantee will help restaurants grow their online business.”

Under the program, if a diner finds a better price for their order on another third-party delivery platform, Grubhub will make up the difference up to $10 and offer an extra $5 in Grubhub Perks. Requests can be submitted through the company’s app or website.

If an order arrives late, Grubhub will also send the diner Perks of at least $5 off to use on their next order.

The company is launching a marketing campaign, including a national TV spot, as well as social media pushes that will include athletes such as Alex Morgan, Allyson Felix, Caeleb Dressel, Hunter Woodhall and Tara Davis.

Last month, Amsterdam-based Just Eat Takeaway.com completed its acquisition of Grubhub. Following the closure of the deal, DeWitt, formerly the delivery company’s president and chief financial officer, was named CEO. Former CEO Matt Maloney will become a member of the Just Eat Takeaway board of direcotors.

Meanwhile, competitor DoorDash on Monday said it would give away 1 million pints of free ice cream between July 15-18 for orders totaling $20 or more.

Contact Lisa Jennings at [email protected]

Follow her on Twitter: @livetodineout