Cashier App: Offline POS

Point of Sale - Scan barcodes with your phone camera or any HID barcode scanner - Sell by unit or by weight (kg, g) - Cash sales or credit sales with a debt ledger for each customer - Configurable tax support (VAT, GST, KDV, MwSt) with country-aware defaults - Per-product tax override or exemption - Tax-inclusive or tax-exclusive pricing - Apply per-sale discounts as a percentage or fixed amount - Auto-kick connected cash drawer after each cash sale - Print customer and store-copy receipts Printer Support - Bluetooth thermal printers (ESC/POS, 58mm or 80mm paper) - Network / Wi-Fi thermal printers (ESC/POS over TCP/IP, 58mm or 80mm) - Built-in printers on Sunmi devices (V1, V2, V2 Pro, T2, and others) - Built-in printers on iMin devices (M2, D1, D3, D4, Falcon series) - Automatic Wi-Fi printer discovery on the local network (mDNS / Bonjour) - Manage multiple printers from one Devices hub - Test print and reconnect with a tap Inventory Management - Add products by barcode or manually - Automatic local currency pricing based on the exchange rate - Low stock alerts - Register shipments with automatic cost allocation and profit margin calculation - Capture vendor name, invoice number, and invoice date per shipment - Price change log Shifts & Reports - Open and close shifts with opening and closing balance tracking - Z Report with a printable financial summary including tax collected - Sales and returns reports for any time period - Track daily expenses (drawings, transport, payouts) - Share or save any report as a PDF Credit Book - Sell on credit and record payments per customer - Monitor outstanding balances - Customer statements as PDF Security & Backup - Lock the app with a PIN or fingerprint - Encrypted backup and one-tap restore Tablet Layout - Three-panel POS: product grid, cart, and checkout side by side - On-screen keypad with T9 letter labels - Master-detail views for Sales History, Credit Book, Inventory, and Shipments - Side-by-side reports showing Most Sold and Highest Revenue simultaneously - Inline return mode — register returns without leaving the POS screen - Collapsible navigation rail - Optional scan and cart sound effects - Full hardware keyboard support for fast operation by professional cashiers — every action mapped to a key, with on-screen shortcut overlay (press F12) Available in multiple languages — full interface and printed receipts