Katis - Offline Cashier App

Katis is an offline-first Point of Sale (POS) designed for food stalls, cafes, retail shops, and small businesses. Manage your daily cash register operations, track sales records, print thermal receipts, and view financial performance without needing an active internet connection or recurring server subscriptions. FAST CHECKOUT & INTUITIVE CASHIER • Clean, responsive catalog grid for quick order processing. • Integrated camera barcode & SKU scanner powered by on-device recognition. • Automatic calculation of totals, custom discounts, itemized taxes, and cash change. • Support for cash payments and static QRIS code presentation with manual payment confirmation. • Real-time stock status visibility to prevent selling unavailable items. BLUETOOTH RECEIPT PRINTER INTEGRATION • Seamless wireless connection to standard 58 mm and 80 mm ESC/POS thermal printers. • Add custom store branding: print your store logo, business address, and contact phone number. • Online delivery channel markers: include GoFood, GrabFood, or ShopeeFood headers and logos directly on customer receipts. • Instant receipt reprinting and test print diagnostics. ROLE-BASED EMPLOYEE ACCESS MANAGEMENT • Separate Owner and Employee access modes. • Secure 6-digit owner security PIN with cryptographic protection. • Granular access permissions: manage employee authority over catalog editing, expense logging, and report viewing. • Strict cancellation policy: require a mandatory reason before voiding any completed order. COMPREHENSIVE FINANCIAL & MONTHLY REPORTS • Track daily, weekly, monthly, and custom date range business performance. • Clear financial metrics: gross revenue (omset), estimated cost of goods, operational expenses, and net profit. • Visual trend graphs to inspect performance patterns across time. • Identify top-selling menu items by quantity and revenue. • Export summary data to standard CSV spreadsheets for external record keeping. LOCAL-FIRST DATA PRIVACY & BACKUP • All operational data, transactions, and product details remain securely on your local device storage. • Create offline database backups anytime and restore them easily without relying on cloud servers. Katis provides core POS and management features for free, supported by non-intrusive banner advertisements in non-transactional screens. Optional in-app purchases are available for advanced operational tools and an ad-free experience.