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Cashback · iiko

Cashback integrated with the POS

For GADIM, we developed a cashback app with direct iiko integration: bonuses are earned and redeemed directly on the receipt—E2E-tested on live orders.

FlutteriikoCashback
GADIM
ClientGADIM
ServicesApp · iiko integration · Backend
DirectionHoReCa · Loyalty
LocationKazakhstan
What we did

What we did for the project

Direct POS integration — bonuses work on the actual receipt.

Live iiko

v2-authorization and exchange: accrual and redemption are processed directly on the POS receipt.

Payment with bonuses

The guest pays with accumulated cashback — right at the checkout.

iOS + Android

Flutter app for both platforms.

E2E testing

Integration verified by a live order with charge and cashback processing.

Backend in production

The backend is deployed and live in production.

Transparent history

The guest sees all accruals and debits in the app.

Built with

Project technologies

A reliable stack for the project needs.

FlutteriOS + Android
iiko API v2POS
Node.jsbackend
OAuthauthorization
Pushnotifications
TestFlightdistribution
01Challenge

Bonuses without manual labor

The establishment needed a cashback system that works automatically: no lists at the checkout and no manual calculations by staff.

02Design

Benefits in plain sight.

Bonus balance on the home screen: the guest always knows how much they have accumulated and what they can redeem.

  • Balance on the home screen
  • Transaction history
  • Easy payment with cashback
03Development

Complex integration — made simple

Completed iiko v2 authorization (appId + apiKey + clientSecret) and pushed the exchange to production: order 36466 — live deduction and 3% cashback.

Result

Cashback in action

The system works on the venue's actual POS: the guest earns and spends bonuses, staff does nothing manually.

Project Q&A

FAQ

How is this different from discount cards?+

Cashback motivates customers to return: discounts are easily forgotten, but accumulated bonuses keep drawing guests back. All automated via the POS.

How complex is the integration with iiko?+

We have completed it in full, including v2 authorization — your establishment just needs to grant access, and we will handle the rest.

Are bonuses actually redeemed on the receipt?+

Yes, E2E-tested on live orders: accrual and redemption are reflected in the actual iiko receipt.

Shall we connect cashback to your POS?

Tell us your task — we will propose a solution, timeline and price.

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