The complete POS software that Helsinki businesses keep looking for already exists, and it is free. Posnic covers checkout, inventory, VAT (ALV) and reporting, offline first and open source.
The complete application is public on GitHub under AGPL-3.0. No trial, no feature locks, no telemetry.
Everything lives in a local database you control, exportable to CSV any day, with a documented sync protocol.
Thermal receipt printers, barcode scanners, label printing, weighing scales and cash drawers are all supported.
Checkout in Helsinki never waits on the internet. Posnic runs on the shop computer, keeps billing through any outage, and syncs later if you use Posnic Cloud.
Configurable tax groups handle VAT (ALV) with inclusive or exclusive pricing, printed correctly on every receipt.
Prices, receipts and reports display in euros with local number formatting, configured once per store.
Posnic for your business: Grocery · Restaurants · Cafes · Fashion · Pharmacy · Electronics · Hardware
Yes. Support is available worldwide over WhatsApp and email at info@posnic.com, with guides and video tutorials free on our website. Cloud subscribers get priority support with remote diagnostics.
Yes. Posnic Community Edition is free forever, everywhere including Helsinki. It is open source under AGPL-3.0 with all features included. Posnic Cloud, the optional sync and backup service, is the only paid product.
Yes, completely. The software runs on your own computer and needs no internet connection to sell, print receipts or manage stock. Cloud sync, if you use it, catches up automatically when the connection returns.