1
Install it on the till
Add RetailOS to your desktop, tablet or phone as an app (PWA). It launches full-screen like a native POS terminal.
Offline-first retail POS
The offline POS system that never stops selling
Wi-Fi drops, dead spots and flaky connections shouldn't stop a sale. RetailOS installs on your till and keeps ringing up orders with no internet — then syncs everything back safely the moment you reconnect.
Resilient retail in three steps
2
Sell like normal — online or off
Scan barcodes, take split payments and print receipts. When the connection drops, the terminal keeps working from a cached catalog.
3
Reconnect and auto-sync
Queued sales sync automatically and duplicate-safe the moment you're back online, with price/tax variances flagged for a manager.
Built for the counter
Everything an offline POS needs
RetailOS treats offline as a first-class mode, not an afterthought — so your books, stock and receipts stay correct even when the sale happened with no signal.
- Keeps selling with zero internet
- On-device sale queue (IndexedDB)
- Duplicate-safe, idempotent sync
- Cached catalog + barcode index
- Price / tax variance reconciliation
- Conflict console for managers
- Cash sessions & reconciliation
- 58 / 80 mm thermal receipts
Register 1 Offline · 3 queued
Total$263.00
Sales sync duplicate-safe when the connection returns.
Never lose a sale to a dropped connection
Set up your shop in minutes — offline POS, inventory, accounting and a branded online store, all included.