Business owners use SDOS on Windows to manage client records, orders, tasks and deadlines. A daily journal, a basic goods/services catalog with a Stock field, invoicing, order and invoice archives, a calculator, a goods report and exchange rates are included. Users print invoices or save PDFs through the system print dialog, and import, export or back up data in JSON. SDOS requires Windows 10 (1809+) or Windows 11, x64, and Microsoft WebView2 Runtime. English, Ukrainian and Russian interfaces are available. Some functions work locally; online services and access verification may require internet. The software is offered by commercial subscription after a 7-day trial without a card. No team collaboration, cross-device sync, mobile app or Shopify integration is available in this release. Marketplace orders are entered manually.
