Foursquare users can now not only use the mobile app to check in and share their locations with friends, they can also use it as a tool to fill their stomachs.

Hungry consumers can use the Foursquare mobile app to order food, groceries or alcohol for delivery from nearby by restaurants and stores via delivery.com.

Here’s how it works: A Foursquare app user who wants dinner delivered from a restaurant in the Foursquare app can view delivery.com restaurant information right in the Foursquare app and see if the eatery works with delivery.com. If the Foursquare user has the delivery.com app on her smartphone, she can navigate to the delivery.com menu screen to place an order without having to leave Fousquare to open the delivery.com app. If she doesn’t have the delivery.com app, she is directed to install it from the app store and then check out.

“Foursquare users can enjoy an improved experience with easy access to delivery options, while delivery.com is exposed to a broad audience of high-intent-to-purchase users via contextually relevant content,” the companies say in a release.

The integration between apps is facilitated by mobile commerce vendor Button, which provides an application programming interface, or API, that clients use to link their apps to one another.

The process is akin to affiliate marketing—which is commonplace on the web—but for apps, which tend to be more isolated and operate apart from one another.

“We love being able to offer market-specific services that enrich consumer experiences and help consumers connect with great local merchants—like through delivery via delivery.com,” says David Ban, director of business development at Foursquare.

Button’s clients include Uber, Airbnb and Ticketmaster. Button takes a commission for each sale or conversion completed via its API. The app that added the button that facilitated the sale also gets a cut.  Apps can choose to add as many “buttons” as they would like from Button’s client list, or what it calls the Button Marketplace, by adding a few lines of code to their apps. With the few lines of code, apps get access to the entire Button marketplace of apps and services. Adding additional Buttons doesn’t require additional integrations, Button says.

“We drive higher converting traffic by surfacing products or services at precisely the times users have intent for them—whether that’s reading about a cool new product, reviewing a restaurant to visit or in the midst of booking travel,” says Mike Jaconi, CEO of Button. “We’re creating a monetization platform similar to affiliate for the app economy. Button provides (app) publishers an alternative for driving revenue that isn’t limited to mobile ads.”

Delivery.com says more than 1 million customers have used its service and that it works with more than 10,000 merchants and restaurants in 38 U.S. cities.

“Our extensive merchant network is ripe for monetization by partners like Foursquare, while a marketplace like Button’s makes the integrations easier to implement,” says Jed Kleckner, CEO of delivery.com.

Making apps more valuable to consumers is important because 54% of the time consumers spend with digital media occurs within a mobile app, according to comScore Inc. And, time spent in smartphone apps specifically (not smartphone and tablet apps) is now approaching nearly half of all time spent with digital media, according to comScore’s “The 2015 U.S. Mobile App Report,” which tracks the sites and apps of 1,000 of the largest digital companies, including retailers, travel companies, financial services businesses and entertainment companies.

Subscribe Today to Mobile Strategies 360 and Receive Exclusive Data. Not only will you get the latest information on the rapidly changing mobile industry, you will also receive Mobile Market Insights a free monthly overview on the market. These fact sheets are filled with data and statistics to help you identify opportunities and get a jump on the competition. Mobile Market Insights is available only to Mobile Strategies 360 subscribers. Once you enter your free subscription, click on the link for your free download.

Be sure to follow us on Twitter and LinkedIn and be the first to know when new Mobile Strategies 360 content is published.