An EPOS system that talks to the back office

Connect the till you already run and your sales start depleting stock, shaping next week's rota and filling in the cashup. Our own till, ZynthioEPOS, is in build — and this page is honest about which half is which.

Zynthio is built in Scotland for UK hospitality — pubs, restaurants, cafes and multi-site groups.

Available today, and in build

Plenty of EPOS websites describe a roadmap in the present tense. Here is the split, plainly.

EPOS integration with your current till

ZynthioEPOS, our own till

Most tills are an island

A modern till will happily tell you that you sold four hundred and twelve pounds of pizza last Tuesday. What it will not do is take those pizzas off your stock, tell you whether you were overstaffed for that trade, or fill in the cashup. So somebody prints the Z-read and types the same numbers into a spreadsheet, an inventory sheet and a cash-up book. Three retypes of one true number.

Zynthio's position is not that you should throw the till out. It is that the till's sales should land somewhere useful. Connect Toast today and the sales you have already made start doing work: depleting stock down to the leaf ingredient through your recipes, shaping the staffing suggestion for the same day next week, and pre-filling the day's cashup so the manager checks a figure instead of transcribing one.

Where a connected sale ends up

The till we are building for UK venues

A pub till and a restaurant till are not the same animal, and neither is a coffee shop. ZynthioEPOS is being built around the things UK operators actually do all night: tabs behind the bar, moving a table, splitting by seat, and a kitchen that needs the order the second it is rung.

Floor plan and tables

Rooms and areas you lay out yourself by dragging tables. Live table states, covers, walk-ins, joining tables, transferring a table, converting to a tab.

Ordering built for service

Colour-coded category grid, item search, modifiers with price deltas, per-line seats, a canned message library, and the fourteen statutory allergens as a separate field printed in red on the ticket.

Kitchen display

Bump, hold, recall and fire, with prep-station routing so cold larder is not reading the grill's tickets. Runs as its own terminal role on a spare screen.

Offers that price themselves

Combos, multibuys, category percentages and fixed-price menus, constrained by day, time and date range. The offers engine prices correctly even with no internet.

Offline ordering

An append-only event log on the device keeps service running through a broadband drop, then syncs. Printing is the exception — printers pull jobs from the cloud, so that needs a connection.

Drawer, X-read and Z-read

Drawer sessions with float carry-over, paid in and out, safe drops, shift reports and an end-of-day pack. The Z-read posts itself straight into the Zynthio cashup.

Permissions that hold

Eight controllable actions across four tiers, PIN elevation for a supervisor override, and every permission re-checked on the server rather than trusted from the device.

Clock in at the till

Staff clock on at the till and it writes a real attendance event into Zynthio HR — the same record that becomes their timesheet. Not a separate list to reconcile.

Stock off the sale

Closing an order depletes stock to the leaf ingredient, portion-accurate and void-aware, and can auto-86 an item on the site menu when the last one goes.

What ZynthioEPOS does not do yet

Integrated card payments are not available on live sites, so card is taken on your existing standalone terminal and recorded on the bill as an external card payment. Printing requires an internet connection. There is no stored-value gift card or loyalty balance management (a gift card can be recorded as a tender), and no delivery-platform integration.

We would rather you knew that before a demo than after an install. If none of it is a blocker for your site, we would like to hear from you.

EPOS and till questions

Can I buy the ZynthioEPOS till today?

Not yet. ZynthioEPOS is in build and running in pilot, and we would rather say so than sell you something that is not finished. You can join the waitlist and existing Zynthio customers get access first. What is available right now is the EPOS integration: connect the till you already run, and its sales flow into Zynthio's stock, rota planning and cashups from the same afternoon.

Which EPOS systems does Zynthio connect to?

Toast is live today. An org admin connects their own Toast account through a standard OAuth login, maps each Toast location to a Zynthio site, and sales sync every five minutes with a manual refresh available. You get daily and hourly sales, top-selling items, site-level and whole-group views, and a sync audit log. Other tills are on the roadmap. If yours is not connected yet, takings can still be entered on the daily cashup by hand and everything downstream works the same.

Does the ZynthioEPOS till work offline?

Ordering does. The till holds an append-only event log on the device, so ringing items, sending to the kitchen, voids, discounts, offers pricing, cash and external-card payments and closing bills all keep working when the broadband drops, then sync when it comes back. Printing is the honest exception: printers collect their jobs from the cloud, so receipt and kitchen printing needs a connection. Order state is also per terminal today, so a second till does not yet see the first till's open tables.

Does it run on Android tablets and phones?

ZynthioEPOS runs in the browser, so it works on an Android tablet, an iPad or a Windows till provided it has a modern browser and a reasonable screen. It is not a native app you install from the Play Store, and it is not part of the Zynthio staff mobile app. Handheld ordering and kitchen display run the same way, as terminal roles you assign when you pair the device.

How are card payments handled?

Today, on your existing standalone card machine. The bill is settled in ZynthioEPOS as an external card payment, so the tender split, the drawer session and the Z-read still reconcile properly at the end of the night. Integrated card payment is in development and is not available on live sites, so no card money moves through Zynthio. That also means there is no card refund flow yet, and no gift cards, stored value or loyalty balances.

Related guides

Practical guides from the Zynthio team on this part of running a venue.

How real-time EPOS data sharpens restaurant decisions

Real-time EPOS data turns till transactions into hourly signals on sales, labour and stock that managers can act on during the shift, not the next day.

More operator guides on the Zynthio blog. How we write them: editorial policy.

One login, one bill, one set of sites

Every Zynthio module shares the same sites, the same people and the same reporting. Turn on what you need.

Martyn’s Law Readiness

Procedure templates, a per-site capacity and tier view, a quarterly drill record and a staff briefing.

Zero-Hours Readiness

Guaranteed hours, shift notice and cancellation payment policies, plus the rota record that evidences them.

Food Safety & HACCP

Digital daily checks, temperature logs, HACCP plans, allergen charts and EHO-ready PDF records.

Rotas, Clock-In & HR

Build rotas against a live labour budget, clock staff in with geofencing, approve timesheets.

Stock & Cashing Up

Stocktakes, purchase orders, delivery scanning, GP tracking and daily cashups with weekly rollups.

HACCP Plans

Build a full Codex HACCP plan online, link CCPs to daily checks and export EHO-ready PDFs.

COSHH & Risk Assessments

Substance register with data sheets and PPE, plus scored venue risk assessments with sign-off.

Audits & Mock EHO

Ten UK templates, 400+ inspector-style questions, weighted scoring and a site league table.

Staff Training

Assign courses, track completion by person and site, and issue certificates into the HR file.

Review Management

Google, TripAdvisor and your FSA rating in one dashboard with a reputation score per site.

Table Bookings

Website booking widget, live service diary, deposits and a guest CRM - no per-cover fees, ever.

Refusals Register

A digital refusals book filled from the till, ready for the licensing officer.

Cash Management

Safes, floats, banking and an append-only ledger with daily cash-up reconciliation.

Accounting Export

The daily sales journal, supplier bills and payroll journal in Xero’s own import layouts.

KPIs & Reporting

Clock-in accuracy, labour budget, salary utilisation and reputation, per site and per group.

Recipe Costing

Cost dishes from live stock prices, track GP ex-VAT and tag all 14 UK allergens.

Free GP Calculator

Cost a dish, cost a keg by the pint, or price to a target GP. No account needed, VAT handled properly.

Or start at the beginning on the Zynthio homepage, try it with sample data on the live demo, or read practical operator guides on the blog.

Start with the back office, add the till later

Get Zynthio running on a 14-day free trial, connect your existing EPOS, and you are in the queue for ZynthioEPOS when it opens up. Want to talk about a pilot? Get in touch.