White Castle Online Ordering is a free iPhone application developed by White Castle Management Co. that allows users to order food on the go. The app features a complete menu, a castle locator, crave customization, and on-the-go ordering. You can also save your favorite cravings for future reference and access app-only menu items and offers. Moreover, the app offers exclusive access to Craver Nation® deals and offers. The app also supports contactless payment options like Apple Pay and Venmo, making the ordering process even more convenient.

The app's interface is user-friendly, and you can easily navigate through the menu and customize your cravings. The app also allows you to locate the nearest White Castle restaurant using the castle locator. In addition to this, the app offers exclusive deals and discounts to its users, making it a must-have for all White Castle fans. Overall, White Castle Online Ordering is an excellent app for fast, convenient, and contactless ordering of your favorite White Castle cravings.