INSTRUCTIONS
Use 1Kassir with confidence
Product documentation will cover store setup, products, barcodes, inventory, purchases, customers, expenses, cash sessions, selling, returns, receipts, reports, hardware, backup, restore, and computer migration.
Safety first
Keep verified backups, protect operating-system credentials, install only signed releases from the official download page, and never share account secrets with support.
Local-first by design
Daily store operations remain available without a permanent internet connection. Cloud account and subscription state refreshes when connectivity returns.