For the past eight years, Valentine's Day has been the busiest day of the year for mobile takeout and delivery orders, according to Snapfinger, a mobile commerce platform for the restaurant industry. This year was no exception as the mobile total reached 1.6 million, setting a record for the most mobile takeout and delivery orders placed in one day.

The number increased 116 percent over 2012, and indicates restaurant-goers nationwide are more comfortable embracing the convenience of mobile app-based ordering and payment. The average ticket across all orders was $35.22 per order, said Snapfinger CEO Jim Garrett.

"Valentine's Day is the most active day of the year for mobile takeout orders, because it combines the quality and taste of people's favorite restaurant food with the intimacy and peacefulness of a meal at home," he said. "Especially when Valentine's Day falls during the work week, the simplicity of making orders on a smartphone and having it delivered or ready for pick-up is invaluable for consumers pressed for time."

Read more about mobile ordering.