IHOP 'N GO is the International House of Pancakes' online ordering service that was in a limited test phase earlier this year. Now, the breakfast food chain is rolling out the program nationwide. Starting today, most US restaurants will accept online to-go orders placed at IHOP.com. IHOP also plans on rolling out a mobile app by the end of the year, as well as adding delivery service through Amazon.com and DoorDash. That program is being tested in select cities in California, Texas, Oklahoma, Washington and Utah.