Billing

GST billing · A product by Nowgray

Bill in twenty seconds.
Get paid without chasing.

GST-ready billing for shops, service businesses and offices — with the khata your customers owe you built in, and none of the clutter your staff don't need. Point the camera at a supplier's bill and it types itself in. Works at the counter whether or not the internet does.

Free forever for one user. Not a trial.

GST done properlyCGST/SGST or IGST worked out from the place of supply. HSN, tax breakup, amount in words.
Works without internetBill through an outage. Nothing waits on a signal, and nothing is lost when it drops.
Your data is yoursBills are stored on your own device. Export them whenever you like, in a format your accountant can read.
No card to startThe free plan is free forever, not a countdown. Upgrade only when a second device would help.

The whole product

Five screens. That's the app.

Everything a counter needs and nothing it doesn't. Swipe through — this is the real interface, not a concept.

New bill
Bill to
Bengaluru Retail
IGST · Karnataka
Search items to add
Steel Tiffin Box
₹450.00 × 1 PCS · 18%
₹531.00
Detergent Powder 1kg
₹180.00 × 1 PCS · 18%
₹212.40
Taxable value₹630.00
IGST₹113.40
Round off−₹0.40
2 items
₹743.00
Save bill
Bill Tap items in, watch the tax work itself out. Out-of-state customer? It switches to IGST on its own.
INV/2026-27/0004
Bengaluru Retail · 14 Aug 2026
Unpaid
Total
₹743.00
Seven Hundred Forty Three Rupees Only
Share bill
Record payment
Steel Tiffin Box
18% · HSN 7323
₹531.00
Detergent Powder 1kg
18% · HSN 3402
₹212.40
Place of supply: Karnataka · inter-state
Home
Parties
+
Bills
Items
Send A proper tax invoice as a PDF, straight to WhatsApp. Built on the phone, so it works offline too.
Outstanding
₹5,458.00 across 3 bills
Ramesh Kumar
INV/2026-27/0001 · 04 Aug
₹802.00 Overdue
Remind
Bengaluru Retail
INV/2026-27/0002 · 09 Aug
₹956.00 Unpaid
Remind
Suresh General Store
INV/2026-27/0003 · 14 Aug
₹457.00 Unpaid
Remind
Home
Parties
+
Bills
Items
Chase Oldest debt first, because that's the one that goes bad. One tap sends a WhatsApp reminder with the amount already written.
Scanned bill
Check before saving
OCR
SHREE DISTRIBUTORS
GSTIN 29AACCS1234F1ZP · Bengaluru
Bill SD/128412 Aug 2026
Basmati Rice 5kg   10 × 590.00 Sunflower Oil 1L   24 × 132.00
Supplier Shree Distributors
Bill no · date SD/1284 · 12 Aug
Input GST ₹438.40
Basmati Rice 5kg
10 × ₹590.00 · 5%
₹6,195.00
Sunflower Oil 1L
24 × ₹132.00 · 5%
₹3,326.40
Two lines read. Tap any figure the camera got wrong.
Purchase total
₹9,521.40
Save
Scan Photograph a supplier's bill and the supplier, bill number, date, rates and tax come back filled in. You check it, not type it.
Items
4 saved
Search items
Basmati Rice 5kg
5% GST · per PCS · HSN 1006
₹620.00
Sunflower Oil 1L
5% GST · per LTR · HSN 1512
₹145.00
Detergent Powder 1kg
18% GST · per PCS · HSN 3402
₹180.00
Steel Tiffin Box
18% GST · per PCS · HSN 7323
₹450.00
Home
Parties
+
Bills
Items
Set up once Save what you sell with its rate and HSN code. After that, billing it is one tap.

What you get

Billing that fits how you actually bill.

Retail counter, service desk or back office — the flow adapts instead of forcing one rigid process on you.

01
GST-compliant invoices

Tax split worked out from the place of supply, HSN and SAC codes, rate-wise breakup, amount in words, and a gapless invoice series per financial year.

02
The khata, built in

A running balance for every customer, with the ledger behind it. Opening balances carry over from the book you're replacing.

03
Payments and part payments

Take ₹2,000 against four bills and it settles the oldest first, the way you'd do it on paper. Anything left over sits on their account.

04
Reminders on WhatsApp

One tap opens WhatsApp with the amount and bill number already written. No marketing credits, no per-message fee.

05
Purchase bills, read by the camera

Photograph what your supplier handed you. The supplier, bill number, date, line items and the GST you paid come back filled in, ready to check. Your input tax stops being a shoebox.

06
Cash sales too

A walk-in doesn't need a name, an address or a khata entry. Bill them and move on.

07
Composition and reverse charge

Bill of supply instead of a tax invoice, with the declaration printed, when that's what your registration calls for.

08
Cloud backup and a second device

Bill from the counter and the back office at once, with everything kept in step.

09
Reports your accountant can useSoon

GSTR-1 summaries and sales reports exported in the formats they already work in.

On your phone

It installs like an app, because it is one.

No store account, no 40 MB download, no waiting for an update to reach you. Add it to your home screen and it opens full-screen, offline, with its own icon.

Install it now

Works on Android, on a Windows or Mac desktop, and on iPhone through Safari's Share menu. The camera, the PDFs and the khata all work with the aeroplane mode on.

  1. Android / Chrome — menu ⋮ → Install app, or tap Start free and accept the prompt.
  2. iPhone / Safari — Share → Add to Home Screen.
  3. Desktop — the install icon at the right of the address bar.
Open the app

The Android build

There is a packaged Android version of this same app, for the camera work — a phone's own text recognition reads a supplier's bill faster than the browser can, and it keeps working with no signal at all.

It is in testing, not yet on the Play Store. Everything on this page works today in the installed web app; the packaged build is an upgrade to the scanning, not a different product.

Ask for the test build

Pricing

Priced for a shop, not an enterprise.

The free plan is the whole billing app, not a crippled sample. Pay only when you want your bills on more than one device.

Free
₹0forever
  • Unlimited GST invoices
  • Unlimited customers and items
  • Khata, dues and reminders
  • PDF and WhatsApp sharing
  • Works offline
Start billing

One device. No card, no expiry.

PlusMost shops
₹79/month, billed yearly
  • Everything in Free
  • Cloud backup and restore
  • Up to 3 devices or staff
  • GST and sales reports, Excel export
  • Your logo on every invoice
Start free, upgrade later

₹949 a year. ₹99 if you'd rather pay monthly.

Pro
₹199/month, billed yearly
  • Everything in Plus
  • Unlimited staff, with roles
  • Multiple businesses in one login
  • E-invoicing and e-way bills
  • Support on WhatsApp, same day
Talk to us

₹2,399 a year. ₹249 monthly.

Prices include GST. No per-invoice fee, no commission on what you bill, and no lock-in — your data exports in full whenever you ask for it.

Questions

Before you start

Is the free plan really free?

Yes — one device, unlimited bills, no expiry and no card. We charge when you want your bills backed up and on more than one device, which is a want, not a wall.

What happens when the internet goes down?

You keep billing. Bills are written to your phone first, so the counter never stops. On Plus and above they sync up once you're back on a signal.

How well does scanning a purchase bill actually work?

On a flat, well-lit printed bill it usually gets the supplier, the bill number, the date and the totals right, and most of the lines. It always hands you a filled-in form to check rather than saving anything by itself — a figure the camera misread is a figure you would have to unpick from your books later.

Do I need a GST number?

No. Without one you'll raise plain bills; with one you'll raise proper tax invoices. Enter your GSTIN and the state fills itself in.

Can I move my khata across from paper?

Yes. Each customer takes an opening balance, so what they already owe you carries over on day one.

Will my accountant be able to work with this?

Every invoice carries the fields they need — both GSTINs, place of supply, HSN per line and the rate-wise tax breakup. Report exports are on the way.