Karobari is a fast, offline-first POS, billing, and inventory platform for retail and marts. Unlike cloud-heavy tools that stall during network drops, Karobari commits sales directly to on-device storage in under 3 seconds and syncs silently in the background. Key features: • 100% offline checkout with barcode & numpad modes • 58mm/80mm thermal print & WhatsApp receipts • Staff PIN handoffs with owner margin privacy • Multi-currency & multi-language • Zero ads, zero watermarks, zero paywalls