Photo by Amelia Holowaty Krales / The Verge

A new report by Vice reveals yet another marketing tactic by Grubhub that attempts to maximize the commission fees it can charge to restaurants when customers order through the service. Yelp, a Grubhub partner, quietly hides a Grubhub-affiliated phone number when you choose to call a business from the Yelp app. (Disclaimer: my parents own a restaurant and are listed on Grubhub and Yelp.)

According to Vice, a Yelp listing for a restaurant shows the correct phone number for the business. If users click to “order delivery or takeout,” they are presented with the option to order through a deep-linked Grubhub app. However, if they click the actual phone number listed to call the business directly, the phone number that appears on the dialer…

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