Try DinerMagnet.
This is the real product, with sample data. Switch between the three views at the top and click around. Managers and staff use the same DinerMagnet app; their role decides what they see.
Diner
Order from the restaurant's website and branded app, earn rewards, and track the order live.
Manager
The DinerMagnet app with manager permissions: sales, reports, website, marketing, loyalty and AI.
Staff
The same app with staff permissions, on a tablet or phone: live orders, the kitchen display and sold-out dishes.