ProsperBill: GST Billing App

ProsperBill is a fast, offline GST billing and invoicing app made for Indian shopkeepers, wholesalers, distributors and small businesses. Create professional GST invoices in seconds, manage inventory, get paid faster, track payments and file your GST — right from your phone, with no login and no internet needed. Your data stays on your device.

Everything you need to run your business in one app:

🧾 GST BILLING & INVOICING
• Make GST invoices, bills of supply, estimates & quotations in seconds
• Automatic CGST/SGST/IGST, cess, HSN/SAC codes, round-off and amount in words
• 4 professional templates with your logo, brand colour, bank details, terms & notes
• Print to any printer or thermal/Bluetooth receipt printer, or share PDF on WhatsApp & email
• Fast POS / counter billing and barcode & QR scanning
• Whole-bill & item discounts, MRP, tax-on-MRP, wholesale rates, party-wise pricing and extra charges (freight/packing)

💳 GET PAID FASTER
• Add a UPI QR to every invoice so customers scan and pay instantly
• Show your bank details for NEFT/IMPS
• One-tap payment reminders and a smart Collections screen for overdue bills
• Cheque register — track open, cleared and bounced cheques

📦 INVENTORY & STOCK
• Unlimited items with multiple units, categories & photos
• Live stock, low-stock alerts and stock adjustments
• Batch & expiry tracking (FEFO) with an Expiry report, plus serial numbers / IMEI
• Item variants (size/colour) and multi-godown / warehouse stock
• Manufacturing / Bill of Materials — build finished goods from raw materials

👥 CUSTOMERS & SUPPLIERS
• Manage parties with GSTIN, credit limit and opening balance
• Credit-limit alerts, party ledger / statement and outstanding receivables
• Record full/partial payments & advances — cash, UPI, bank, card or cheque

💰 ACCOUNTING & MONEY
• Bank & cash accounts, transfers and cash book
• Expenses with categories
• Loan accounts with interest & EMI tracking
• Balance sheet, trial balance and profit & loss

📄 ALL BUSINESS DOCUMENTS
• Invoice, estimate, purchase, delivery challan, credit note & debit note
• Sales orders & purchase orders — convert to invoice in one tap
• Recurring invoices, foreign-currency invoicing and service / AMC reminders

📊 GST & REPORTS
• GSTR-1 & GSTR-3B summaries and portal-ready JSON
• GSTR-2A/2B reconciliation against your purchases
• e-Invoice & e-Way Bill JSON export, plus composition scheme support
• HSN/rate-wise GST summary, sales, purchase, item-wise, day book, cash book & 20+ reports
• Export any report to Excel or PDF

🔒 SECURE, MULTI-DEVICE & MULTILINGUAL
• 100% offline — works without internet; your data stays on your device
• Password-protected backup & restore, and a Recycle Bin to restore deleted items
• Encrypted folder sync to share data across devices via a Google Drive/Dropbox folder
• Multi-counter billing sync over your local network
• Staff accounts & roles (Owner / Manager / Cashier) with PIN login
• App lock with PIN or fingerprint, and a comfortable Dark mode
• Available in English, Hindi, Tamil and more Indian languages

Perfect for retail & kirana shops, wholesalers, distributors, medical & pharmacy, electronics, garments, hardware, restaurants — any GST or non-GST business.

HOW IT WORKS
1) Add your business, GSTIN & bank/UPI details
2) Add your items (with prices, HSN & stock) and your customers
3) Create a GST invoice — print it, or share on WhatsApp with a UPI QR to get paid
4) Record the payment; stock and reports update automatically
5) See GSTR-1/3B, ledgers & profit anytime
6) Back up or sync your data — safely and encrypted

Download ProsperBill and turn your phone into a complete GST billing, invoicing and accounting solution — simple, offline, and made for India.