Use as an app

iPhone / iPad
Open in Safari. Choose Share, then Add to Home Screen. Keep Open as Web App enabled if shown, then tap Add.

Android
Open the browser menu and choose Install app or Add to Home screen when offered.

Computer
Use the install icon or the browser menu in Chrome or Edge. A normal browser tab also works.

Offline demo
After “Demo shell saved” appears, this sample screen can reopen offline. Sample sales and stock reset when the page reloads. No real payments, orders, sync, printer or notifications are connected.