https://phys.org/news/2018-07-grubhub-levelup-mobile-payment-company.html

Grubhub will be able to tap into that operating system at restaurants, which will facilitate growth, CEO Matt Maloney said Wednesday. For example, LevelUp is used for online ordering at Potbelly Sandwich Works. The acquisition will give Grubhub the ability to deliver for the Chicago-based sandwich chain.

LevelUp, which employs more than 200 people, also provides analytics to restaurants so they can learn more about their customers' ordering habits.