UPI payments · Fintech
Coinjar
Every rupee counts.
UPI payments for people and a soundbox-ready toolkit for shopkeepers.
Every rupee counts.
UPI payments for people and a soundbox-ready toolkit for shopkeepers.
UPI payments for people and a soundbox-ready toolkit for shopkeepers.
The idea
Makes small everyday micro-transactions (chai, auto rides, fresh produce) delightful. Features an automated round-up digital coin jar where leftover change from payments automatically accumulates into digital gold or liquid savings.
The merchant platform includes a simulated multi-language voice soundbox that reads out payment receipts in regional Indian dialects.
- 01
The Coin Jar
Satisfying coin-drop physics whenever an expense round-up lands into digital savings.
- 02
Soundbox Audio Sim
Realistic voice readout in Hindi, Marathi, and Tamil: “Coinjar par ₹40 prapt hue”.
- 03
Sub-second QR Pay
Zero-latency camera recognition optimized for crumpled stickers and dim night lighting.
What we built
Every side of Coinjar, live.
Each one opens the real build in a new tab. On a laptop the apps sit in a phone frame; on a phone they run full screen.
Hero QR scanner, UPI contacts tray, auto round-up savings jar, and bill payments.
Customer app
Hero QR scanner, UPI contacts tray, auto round-up savings jar, and bill payments.
Open /app ↗Daily settlement summary, soundbox audio settings, QR generator, and khata credit book.
Merchant app
Daily settlement summary, soundbox audio settings, QR generator, and khata credit book.
Open /merchant ↗Fintech Ops
PROD BUILDUPI switch latency dashboard, dispute resolution desk, and fraud telemetry.
Fintech Ops
UPI switch latency dashboard, dispute resolution desk, and fraud telemetry.
Open /ops ↗Website
PROD BUILDMerchant sign-up, zero-MDR advantages, device ordering, and developer API docs.
Website
Merchant sign-up, zero-MDR advantages, device ordering, and developer API docs.
Open /home ↗Brand book
PROD BUILDStreet-smart coin iconography, copper metallic finishes, and vernacular typography.
Brand book
Street-smart coin iconography, copper metallic finishes, and vernacular typography.
Open /brand ↗Signature screens
Onboarding & Discovery
Instant sign-in & tailored recommendations
Core Flow & Customizer
Deep configuration with transparent pricing
Live Status & Tracking
Real-time updates and waypoint itinerary
Account & Insights
Unified transaction history & receipts
Brand system
Building something like Coinjar? Let's talk.
We'll walk you through this build on a call and map what yours would need.