Posnic

Posnic's own source is AGPL-3.0-only, while its release packages bundle components such as MongoDB Community Server under their own licences (MongoDB is SSPL-1.0), hence "some components" in the licence field. It was suggested by someone affiliated with the project, who said so up front; we checked the source, licence and release packages against our usual standards.

Commercial POS software usually means a monthly fee, data on the vendor's cloud, and no sales when the internet drops. Posnic's local edition flips that: the database and API run on the shop's own computer, the software price is zero with no trial clock, and no Posnic account is required. The privacy policy states that the local edition sends no analytics or telemetry to Posnic.

The feature set is broad:

• Front counter. Checkout, receipt printing, and common barcode scanners, receipt printers and cash drawers.
• Back office. Products and inventory, customers and suppliers, purchase orders, quotes, expenses and reports — including Indian GST views, a hint at where most users are.
• Restaurants. A kitchen order ticket (KOT) workflow.
• Staff. Separate admin, manager and cashier roles.

There is a live demo at demo.posnic.io (log in as admin / admin, reset every hour), handy for a look before installing.

To be clear about:

• Cloud features cost money. Browser access, the cloud dashboard and sync belong to the paid Posnic Cloud, hence the "freemium" label; one counter on one computer only needs the free local edition.
• Releases are extremely frequent, often several betas a day. For a real shop, install only versions marked as stable.
• It bundles MongoDB, so the install size and memory use are larger than a typical small app.
• The interface is translated into dozens of languages, but tax and receipt formats lean toward Indian conventions, so shops elsewhere should expect some adjustment.