Invoice numbers
Statutory invoice numbers come from the cloud so the series stays gapless across counters. A bill settled offline prints as “Invoice no. pending · not a tax invoice” and receives its invoice number as soon as the counter syncs.
Offline POS
Offline billing: the counter keeps working
Internet outages happen at the worst times. RestoStay counters keep taking orders and settling bills, then sync every bill exactly once.
How it works
What happens when the connection drops
The counter notices
A quiet banner tells staff the counter is offline. Nobody has to switch modes.
Service continues
Orders, KOTs to network printers on the same Wi-Fi, bills and payments carry on using the counter’s local copy of the menu and settings.
Work is kept safe
Everything done offline is stored in an encrypted database on the counter until it syncs.
Back online, synced once
The counter sends its backlog. The cloud accepts each event exactly once, so retries and replays never duplicate a bill.
Honest details
What changes while offline
Staff permissions
Counters carry a time-limited authorisation for the staff who can use them offline, so a removed staff member cannot keep billing on a disconnected counter indefinitely.
Captain phones
A captain phone that loses connection keeps its KOT and sends it once when it reconnects.
A failing counter
If a counter fails before syncing, its unsynced work can be exported and imported for manager review — nothing applies until it is approved.
Verified
Tested the hard way
In our pilot, a Mac counter billed with the internet off; the sale synced exactly once when the connection returned. Long offline shifts with over a thousand events and three counters billing at once are part of our automated release tests.
Questions
Common questions
How long can a counter stay offline?
Counters keep billing through ordinary outages. Staff authorisations on a counter are time-limited for security, so a counter needs to reconnect periodically; the exact window is a security setting, not a restaurant limit.
Will I get duplicate bills after the internet returns?
No. Each bill and payment is sent with a unique identity, and the cloud accepts it once. Re-sending a backlog creates no duplicates.
Can the kitchen still get KOTs offline?
Yes, when the kitchen printer is on the same local network as the counter. The internet is not needed for local printing.
Is the offline data secure?
Yes. Unsynced work is stored in an encrypted local database on the counter.
See RestoStay on your own menu
Tell us about your restaurant and we will set up a walkthrough with your dishes, your tables and your printers.