Invoice Maker: Billing Manager

Invoice Maker Offline is a fast, private, professional invoicing app for freelancers, shopkeepers and small businesses. Create polished invoices, estimates, receipts and more, export them as PDFs, and keep track of who has paid — all on your phone, with no account and no internet required.

Built to work entirely offline. The app has no internet permission and makes no network calls, so it runs perfectly in airplane mode. Your invoices, clients and payment records stay on your device. Data only ever leaves your phone when YOU choose to share or export a file.

CREATE PROFESSIONAL DOCUMENTS

• Six document types from one powerful engine: Invoices, Estimates/Quotes, Proformas, Purchase Orders, Receipts and Credit Notes

• Convert an estimate into an invoice with a single tap

• Automatic numbering with your own prefix — never duplicated

• Add line items with quantity, rate, per-line and overall discounts, shipping and notes

• Live totals as you type, so the number you see is exactly what gets saved

FLEXIBLE TAX & TOTALS

• Single or multiple tax rates per item

• India-style split tax (CGST/SGST) for GST invoices

• Optional whole-number rounding

• Multi-currency support

BEAUTIFUL PDFs, READY TO SEND

• 5 clean templates: Classic, Modern, Minimal, Bold and Compact

• Pick an accent color to match your brand

• Add your business logo and signature

• Live preview, then Share, Print, or Save the PDF to any folder

TRACK PAYMENTS WITH EASE

• Record full or partial payments with date, method and reference

• Automatic status: Unpaid, Partially Paid, Paid and Overdue

• See the balance due and full payment history on every document

MANAGE CLIENTS & ITEMS

• Save clients with billing details and see their outstanding balance

• Build a reusable catalog of products and services for fast entry

DASHBOARD & REPORTS

• See outstanding amounts, paid this month and overdue at a glance

• Monthly revenue chart, top clients, tax collected and more

• Export reports to CSV

SECURE & PRIVATE

• Optional app lock with PIN or fingerprint/biometric unlock

• Encrypted, password-protected backups you can save anywhere

• Restore your data anytime from your own backup file

POLISHED, EASY TO USE

• Clean, modern Material design

• Light, dark and system themes

• Simple enough to send your first invoice in minutes

Whether you're a freelancer sending a quick estimate, a shop owner printing a receipt, or a small business billing clients with GST/VAT, Invoice Maker Offline gives you everything you need to get paid — quickly, professionally and privately.

No sign-up. No login. No internet. Just open the app and start billing.