QR menus are accessed by scanning a QR code with a smartphone, directing customers to a digital menu. They're cost-effective, easily updatable, and gained popularity during the pandemic. However, they require customers to have smartphones and internet access.
Online menus are web-based menus accessible through a restaurant's website or app. They can include detailed descriptions, photos, nutritional information, and real-time updates. They're ideal for takeout/delivery orders and can integrate with ordering systems, but may not suit all dining situations.