Checkout is a feature,
not a destination.
scan every item.
EXIT Q is a scan-and-go infrastructure for physical retail. Customers scan items as they shop, pay on their phone, and walk out with a verifiable EXIT Q pass — no queues, no cashiers.
The flow
Six steps, zero queues.
Store Entry
Scan the store's physical QR to authenticate your device session and bind to a merchant ID.
Mobile Auth
Enter your number → receive a 6-digit OTP. Session token is created locally. No account needed.
Scan & Shop
Point camera at any product barcode. The WebAssembly decoder resolves it against the local catalog in ~80ms.
Cart State
Your cart aggregates quantities, line prices, and GST (CGST + SGST) in real time on-device.
One-tap Pay
Select UPI, card, or wallet. Transaction record finalises the store ledger and triggers receipt generation.
EXIT Q Pass
A signed QR with encrypted transaction metadata is issued. Terminal gates verify and authorise exit.
Before / after
Without EXIT Q
- —Walk to checkout counter carrying all items
- —Stand in queue — average wait: 8–12 minutes
- —Cashier scans every item one by one
- —Fumble for card, wait for machine, sign slip
- —Leave with a paper receipt you'll never read
With EXIT Q
- →Scan items off the shelf as you put them in your bag
- →Pay on your phone before you reach the exit
- →Walk to the terminal, scan your EXIT Q pass
- →Gate opens. You're out. Total time: under 90 seconds.
- →Digital invoice in your SMS. GST-compliant, shareable.
Under the hood
Built on boring,
reliable technology.
No native app. No SDK integrations. The entire customer-facing surface runs in a mobile browser. Barcodes are decoded via a WebAssembly port of ZXing. State is managed on-device. Exit terminals just verify a QR.
Merchant backend is deliberately thin — it stores inventory and issues session tokens. The heavy lifting (cart state, tax computation, receipt generation) happens client-side.
Try it on your phone.
Open the demo link on any device. Real camera scanning, real cart, real checkout flow.