Billing POS software that keeps up with the queue.
Scan, Enter, next. KamaiPlus is built around the barcode gun and the keyboard, so the cashier never reaches for the mouse in the rush hour. Every bill is saved on the PC the moment it is complete, internet or not.
From scan to print in seconds.
Scan or type
The search box always has the cursor. A gun scan adds the item; typed words find it by name, even in Hindi.
Take payment
Cash with change, UPI with the QR on screen, credit to the customer's khata, or split between them.
Enter to print
With "print straight away" on, Enter saves and prints with no window, and the next customer can be scanned at once.
GSTIN 27XXXXX0000X1ZX
Bill INV-1043 · 04 Oct 2026 18:42
1 × 129.00129.00
1 × 240.00240.00
2 × 165.00330.00
What the cashier gets.
Barcode gun ready
Any USB scanner works. The app reads the whole code on Enter, even when the PC is busy, and shows "unknown barcode" with the code so you can add the item on the spot.
Several bills at once
Hold a bill while a customer fetches one more thing and serve the next. F1 opens a new bill from any screen. Cleared a bill by mistake? Undo it for 8 seconds.
Scan mode
Hide the product grid and see only the last scanned item, big, with the running total. Drag the divider to give the bill more room.
Every way to pay
Cash with quick tender buttons and change, UPI with your shop's QR on screen, credit (udhar), or a split such as part cash, part UPI.
Parts of a unit
Sell ½ box, ¾ kg or 7 pieces from a dozen. Quantities keep enough decimals that the amount is always exact to the paisa.
Retail and wholesale
Switch a bill to wholesale and every line re-prices. Customers marked wholesale get it automatically.
Discounts and GST
Flat or percent discount on the bill, spread correctly across the GST on each line. Prices can include GST or have it added.
Returns and edits
Return part of a bill or all of it, refund in cash or to the khata, and edit a saved bill when a line was keyed wrong.
Double-click safe
A hurried double click on Complete Sale still saves exactly one bill. The counter never waits for the printer.
One bill, any printer.
The same bill prints as a 58 mm or 80 mm thermal slip or a full A4 tax invoice, and saves as a PDF. Design it once in Invoice Themes: logo, both phone numbers, HSN per line, a GST table, terms, signature and your UPI QR.
If the printer fails, the bill is still saved and waits in a red bar with "Print again".
| Output | Typical printer |
|---|---|
| 58 mm slip | Small thermal receipt printers (POS-58 type) |
| 80 mm slip | Thermal receipt printers such as TVS RP or Epson TM series |
| A4 tax invoice | Any office printer, colour or black and white |
| Saved in Documents\KamaiPlus\Invoices, ready for WhatsApp or email |
Shortcuts the cashier learns in a day.
All keys are listed in the status bar at the bottom of the screen. See the full list.
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