Platform›Keystone OS
Point of sale, inventory, purchasing, replenishment, banking, VAT/HMRC compliance and AI-driven supplier automation — 35 connected modules built for independent and multi-store retailers.

35
Connected modules
2
Environments: production & staging
UK
VAT & HMRC MTD ready
Live
In production today
Barcode-scan POS, live stock ledger, batch/expiry tracking, and multi-store transfers.
Suppliers deliver inbound ASNs and invoices directly into the system — goods are received and invoices matched automatically, no manual keying.
Forecasts demand, factors in seasonality, and recommends or auto-creates purchase orders before you run out of stock.
UK VAT handling, HMRC Making Tax Digital (sandbox-ready), management accounts and bank reconciliation built in.
Automatic price-review alerts and expiry-driven markdown recommendations protect margin before losses happen.
A resilient point-of-sale that keeps taking sales through a connectivity drop, syncing once back online.
Independent and multi-store retailers who've outgrown spreadsheets and basic till software, and want one system that runs the shop floor, the back office, and compliance together.
Most retail software stops at the till. Keystone OS treats the supply chain as part of the same system — a supplier's delivery note and invoice can flow straight in and reconcile themselves, and the replenishment engine factors in seasonality and supplier lead time rather than just reordering to a fixed par level. It's built as one connected operating system, not a POS with add-ons bolted around it.
We'll walk you through a live store — POS to VAT return.
Book a 30 min call