BillKaro – Digital Dukaan: GST billing, Bluetooth printing & udhaar app for shops

Hey Product Hunt! 👋 Millions of small shops in India (kirana stores, medical shops, hardware stores) still run on a paper bill book, a khata register for udhaar, and a calculator. Billing software usually means a computer, a costly setup, or an accountant. We built BillKaro – Digital Dukaan so a shopkeeper can run the whole counter from an Android phone: 🧾 GST tax invoices (CGST/SGST/IGST auto-calculated) or a simple Bill of Supply for non-GST shops 🖨️ Print on any 58mm/80mm Bluetooth thermal printer in one tap, or share as PDF/image on WhatsApp 📒 Udhaar ledger with WhatsApp payment reminders 🚚 Supplier ledger and purchase tracking 📦 Barcode scanning, stock list and low-stock alerts 📊 Daily sale & profit, export reports to PDF/Excel 🎉 Festival/offer posters to share with customers 🌐 Hindi & English, with cloud backup It's free to download, and Pro plans start at about ₹25/month. We'd love your feedback, especially on what would make billing even faster at a busy counter. Thanks for checking it out! 🙏