Smart GST Billing
for Your Business

Create professional invoices, manage inventory, track payments, and grow your business โ€” all from your phone. Built for Indian businesses.

Calimax Invoice App

Everything You Need

All the tools to run your business billing smoothly

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GST Invoices

Generate GST-compliant tax invoices, proforma invoices & estimates with CGST/SGST breakdown, HSN codes, and amount in words.

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8 Pre-loaded Industries

Sports, Electronics, Grocery, Pharmacy, Clothing, Restaurant, Hardware, Auto โ€” with 500+ ready-to-use items.

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Dashboard & Reports

Revenue tracking, P&L statements, consolidated PDFs, CSV exports, and payment status tracking at a glance.

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Barcode Scanner

Built-in barcode scanner to quickly add items. Generate custom barcodes for your inventory products.

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PIN Lock Security

Secure your app with 4-digit PIN and security questions. Your business data stays private and protected.

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PDF & Print

Professional A4 PDF invoices with 3 premium templates. Share via WhatsApp, Email, Bluetooth print, or direct download.

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Client Management

Import clients from phone contacts. Track GSTIN, payment history, and send invoices directly to clients.

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Product Tags & Labels

Generate barcode stickers and product tags for your inventory. Print 30 labels per A4 sheet.

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Dark Mode

Easy on the eyes. Switch between light and dark themes for comfortable use day or night.

Made for Every Business

Pre-configured for 8 industries โ€” just pick yours and start billing

๐Ÿ Sports ๐Ÿ“ฑ Electronics ๐Ÿ›’ Grocery ๐Ÿ’Š Pharmacy ๐Ÿ‘• Clothing ๐Ÿฝ๏ธ Restaurant ๐Ÿ”ง Hardware ๐Ÿš— Auto

Get Calimax Invoice

Available for Android. Free to use, no sign-up required. Your data stays on your device.

  • Works offline โ€” no internet required
  • GST-compliant invoices (CGST/SGST/IGST)
  • 8 industries with 500+ pre-loaded items
  • Professional A4 PDF invoices
  • Free updates & support
Download APK

Version 1.0 ยท Android 7.0+ ยท 15 MB

Scan to Download

Scan QR to download

Start Billing in Minutes

Download the app, pick your industry, and create your first invoice. It's that simple.

Download Now โ€” It's Free