Bill in seconds
GST-ready invoice, branded, shared on WhatsApp before the customer leaves.
Your whole business, in your pocket.
GST invoices, UPI collection, stock and WhatsApp, the full mazu on Android and iPhone. Not a cut-down mobile version; the same app, fully synced with web and desktop.
GST-compliant · Made in India · From the makers of BUSY
Run the whole business from one app.
The same billing, payments and stock you'd run on a desktop, built to feel effortless on a phone.
Get paid on UPI
A UPI link on every bill, auto reminders that chase for you, receipts sent on their own.
Stock that updates itself
Every sale deducts stock, every purchase restocks it, with low-stock and valuation built in.
Snap a bill. mazu books it.
Photograph a purchase bill and AI reads the vendor, items, HSN and tax, then logs a GST-ready entry and updates your stock. No typing.
You thought it was just billing. And then some.
Most billing apps stop at invoices. mazu doesn't.
One business, every screen.
Native on Android and iPhone, plus the web on tablet, laptop and desktop, your books, synced live.
Far more than invoices.
Quotations, orders, challans, credit & debit notes, a full voucher stack, GST-ready.
A payment page with your name.
Customers pay by UPI or bank from a branded link, no app, no login.
Real books, not just bills.
A full chart of accounts, ledgers and party balances, proper accounting under the hood.
e-Invoice & e-Way, built in.
Generate the IRN, signed QR and e-Way bill inline, no portal hopping.
Your business, at a glance.
Cash flow, receivables, ageing and top movers, live on one actionable dashboard.
Stock, down to the batch.
Track inventory by batch and serial, with expiry and low-stock built in.
Never miss what matters.
Paid, overdue, low-stock and GST alerts, pushed to web and phone.
Reconciliation on autopilot.
mazu matches bank-statement lines to your vouchers and posts the entries for you.
Your templates, your colours.
Ready-made templates you can fully customise, recolour, resize columns, thermal 2/3/4″ & landscape, no watermark.
Your data is never locked in.
One-tap export to Tally or BUSY, or graduate up to full BUSY accounting.
Built by the makers of BUSY.
Three decades of accounting depth, now in your pocket.
Loved by businesses across India.
"My wife stopped chasing the money."
I send the bill from my phone, the customer pays on UPI before I pack my tools, and the receipt is on their WhatsApp.
"I know in two seconds."
800 SKUs across three racks. Every sale updates the stock on my phone. When a customer asks if I have that black kurta in small, I know in two seconds.
"It paid for itself in one recovered invoice."
The invoices look like my brand, the reminders go out without me writing anything, and my clients respect the professionalism.
Feedback from early users · Names abbreviated for privacy