Buying guide

Which Restaurant POS Keeps Billing When the Internet Goes Down?

Updated 2026-09-15 · 6 min read · By the Restozay team

The short answer

Restozay keeps billing through internet cuts with a companion app, Restozay Offline POS, installed on your billing computer. When the cloud is unreachable the dashboard reroutes to it automatically; the cashier switches nothing. Orders are stored locally with their own offline numbers, bills and kitchen slips keep printing from that computer, and everything syncs back once you reconnect, duplicates blocked by an idempotency key.

The billing computer must be a Windows laptop or desktop running that app; waiter tablets connect to it over your local WiFi. Basic is PKR 10,000/month, Premium PKR 20,000/month: no commission, no per-order fee, no setup fee. More than 100 restaurants use it.

How does offline billing mode work during an outage?

If a cut fibre line or a load-shedding block can stop your billing, that is a revenue problem, not just an IT one. Restozay handles it with a companion application — Restozay Offline POS — installed on the computer you bill from. It serves the POS locally on that machine and keeps its own database there. Here is the life of an order taken with no internet:

The switch is automatic. When the cloud is unreachable, the dashboard reroutes every request to the local app on its own. Nobody clicks a button or opens a different address.
Orders are stored locally. Dine-in, takeaway and delivery orders are saved in the companion app's own database and given offline order numbers.
Bills keep coming out. The companion app renders and prints bills and kitchen slips from the billing computer, on 58mm or 80mm rolls from the drag-and-drop receipt designer.
Sync happens twice over. Once the connection returns the dashboard pushes offline orders up, and the companion app also pushes on its own every minute even if nobody has the browser open. An idempotency key stops a bill landing twice.

What keeps working, and what waits for the connection

Offline mode is built for billing, and it is worth being plain about the edges.

Keeps working during a cut: punching dine-in, takeaway and delivery orders; printing bills and kitchen slips from the billing computer; and waiter tablets, which can carry on taking orders by connecting to that computer over the restaurant's local WiFi, because the companion app also serves a tablet ordering screen on the LAN.

Waits for the connection:

The Kitchen Display System. The KDS screen is cloud-based and does not work during an internet outage. Until you are back online the kitchen works from printed slips, so agree that fallback in advance.
Remote thermal printing. The feature that lets a kitchen printer work without a shared LAN relays through the internet, so during an outage you must print to a printer the billing computer itself can reach.
WhatsApp receipts and tracking links, which go out over the official Meta WhatsApp Business Cloud API. Meta bills its own per-conversation fees for that API, separate from your Restozay plan.
PRA e-IMS fiscal reporting. Orders are reported to the Punjab Revenue Authority once you are back online, and the fiscal number and QR follow then.

What do you need? A Windows billing computer and the companion app

The one hard requirement is the machine you bill from, because offline billing comes from the companion app rather than the browser:

The billing computer — a Windows laptop or desktop running Restozay Offline POS. Without that app installed there is no offline billing at all: a browser on its own has no local order storage, so a cut would stop you mid-service.
Waiter tablets, if you use them. An ordinary Android tablet is fine as an ordering device. During an outage it keeps working by connecting to the billing computer over your local WiFi instead of the cloud.
A thermal receipt printer reachable from the billing computer — 58mm or 80mm; the drag-and-drop receipt designer supports both.
A small UPS for the printer, the WiFi access point your tablets use, and the billing computer if it is a desktop rather than a laptop. You do not need a generator just to keep billing.

Setup, menu import and staff training are free, most restaurants go live the same day, and the setup itself usually takes under an hour. Hardware prices move around a lot, so get current local quotes before you fix a budget.

What do "free POS software downloads" really cost?

Search for "free restaurant POS download" and you will find plenty of installers. Honesty first: for a single cash counter with a short menu, a free local billing program can genuinely punch orders and print bills. That is what free software does well — and roughly where it stops.

What the free price commonly leaves out:

Support. When the printer stops responding on a busy Saturday night, there is usually nobody to call — you are debugging drivers between orders.
Updates. Tax rules, printer models and Windows versions keep changing, and abandoned free tools quietly break.
Fiscal compliance. The Punjab Revenue Authority's e-IMS system expects covered invoices to be reported electronically, with a fiscal invoice number and QR code printed on the receipt. Scope, deadlines and categories change, so check the current PRA notification for your business — and see our PRA POS integration guide. Free desktop downloads typically do not integrate with e-IMS at all.
Off-device backup. If your data lives on one hard disk, a theft or a disk failure can take your sales history and khata with it.
Paid unlocks later. Free tiers are commonly reported to cap reports, extra users or support, with charges appearing once you already depend on the tool.

Free vs paid POS: an honest comparison

Put the three realistic options side by side and the trade-offs become clear. Third-party columns describe what is commonly reported rather than any one named product:

What matters	Free download POS	International cloud POS	Restozay
Price	Free; paid add-ons commonly reported	Often billed in USD, typically per terminal	PKR 10,000–20,000/month flat
Offline billing	Yes — it runs locally	Varies widely by product	Yes, via the companion app on the billing computer; orders sync after the cut
PRA e-IMS fiscal invoicing	Typically not offered	Punjab e-IMS support is uncommon	Built in — reported once online, fiscal number + QR on the receipt
Data safety	Usually one PC, one hard disk	Cloud-hosted	Cloud-based; offline orders held locally until they sync
Support	Forums, if any	Remote, often in overseas hours	Local team on WhatsApp; free setup and training
Commission / per-order fee	None	Usually none	None (Meta's own WhatsApp conversation fees still apply)

Free wins on price alone; international cloud tools are polished but are rarely built around Pakistani realities like load-shedding, PKR budgets and PRA e-IMS reporting. For the rupee breakdown of what a POS should cost here, see our POS price guide.

A load-shedding readiness checklist for your counter

Ten minutes of preparation turns an outage from a crisis into a non-event. Run through this once, then re-check monthly:

Check the companion app is installed and running on the billing computer. It is the piece that takes over when the cloud drops, so a machine without it has no offline billing.
Put the router, printer and desktop on a UPS. A billing laptop has its own battery; the router, the thermal printer and any desktop die with the power.
Keep a charged power bank at the counter for long load-shedding blocks.
Stock spare thermal rolls (58mm or 80mm) in the counter drawer.
Rehearse the failure. Once a month, pull the router's plug, punch two test orders, restore the connection and watch them sync. Staff who have seen it once will not panic.
Agree a kitchen fallback. The KDS screen and internet-relayed remote printing pause during a cut, so decide in advance who carries the printed slip or calls out orders.
Pin the support number near the counter so any shift can reach help fast.

Bill through the next outage

Load-shedding in Pakistan is a "when", not an "if" — and a POS that keeps billing through it earns its keep the first evening it saves. Restozay gives you that offline safety net plus the rest of the system: PRA e-IMS fiscal invoicing, WhatsApp receipts on the official Meta API, map-drawn delivery zones, ingredient-level inventory and a supplier khata (purchases and payments in one running ledger, with the outstanding balance visible), from PKR 10,000/month with no commission, no per-order fee and no setup fee. Full plans are on our pricing section.

Setup is free — we import your menu, install the offline companion app on your billing computer and train your staff. Most restaurants are live the same day and the setup itself usually takes under an hour. WhatsApp us on +92 303 3930338 or email [email protected], and bill through the next outage instead of losing it.

FAQ

Common questions.

Does the POS work with no internet at all?

Yes, for billing — provided the Restozay Offline POS companion app is installed on the computer you bill from. When the cloud is unreachable the dashboard reroutes to that local app automatically, so you keep punching orders and printing bills, and everything syncs when the connection returns. It is designed to ride out outages rather than to run permanently disconnected: the cloud kitchen display, WhatsApp receipts and PRA e-IMS fiscal reporting resume once you are back online.

Do I need to install anything?

Yes, for offline billing. Restozay itself runs in a browser, but the offline mode comes from a small companion application, Restozay Offline POS, installed on your billing computer. It serves the POS locally and keeps its own database, which is where orders go during a cut. Without it there is no offline billing at all — a browser on its own has no local order storage. We install it as part of the free setup, which usually takes under an hour.

Can I bill offline from an Android tablet?

An Android tablet is a fine ordering and waiter device, but it cannot be the offline billing machine. The companion app that stores and prints orders during an outage runs on Windows, so the billing computer needs to be a Windows laptop or desktop. Tablets keep working through a cut by connecting to that computer over the restaurant's local WiFi, where the companion app serves a tablet ordering screen.

What happens to orders taken offline?

They are saved in the companion app's local database with their own offline order numbers, and they sync automatically once the internet returns — pushed by the dashboard and, independently, by the companion app itself every minute, even if nobody has the browser open. An idempotency key means a bill never lands twice. After the sync the orders appear in your sales reports and accounts ledger like any other, and PRA e-IMS fiscal reporting runs then rather than during the cut.

Does offline mode cover the kitchen display too?

No. The Kitchen Display System screen is cloud-based, so it stops during an internet outage — that is a real limitation and worth planning around. The kitchen works from printed slips until the connection is back: the companion app keeps printing bills and kitchen slips from the billing computer, though the printer has to be one that computer can reach directly, since remote printing without a shared LAN relays through the internet. Once you reconnect, orders sync and the screens come back on their own.

Is free POS software good enough for a small cafe?

For pure cash billing at one counter it can be — free local software will punch orders and print bills. The gaps show up quickly: little or no support when something breaks, no updates, typically no PRA e-IMS integration, and your whole sales history sitting on one hard disk. Restozay Basic is PKR 10,000/month with free setup, menu import and staff training, so the jump from free to supported is smaller than it looks.