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Posnic POS vs Open Source Point of Sale: catalog facts
Posnic POS	Open Source Point of Sale
Freemium The local edition is free; optional cloud services are paid.	Free Free and open source.
Windows, macOS, Linux, Web	Web, Self-hosted
Local edition supports Windows, macOS, and Linux Does not require an account for local use	Broad retail feature set including stock, invoicing and gift cards Multiuser with permission control
Cloud services are optional paid offerings Published runtime evidence covers Windows only	Needs a PHP and MySQL server to run Interface is based on the older Bootstrap 3
Downloadable app, Web application	Self-hosted
Open source	Open source
License: AGPL-3.0-only	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.