Payments · Flutter · Cross-Platform
PPAY
Year
2026
Duration
10 weeks
Role
Full-Stack Mobile Developer
Category
App
Overview
Client Type
Mobile Product
Delivered
2026
Timeline
10 weeks
PPAY is a digital payments app targeting peer-to-peer transfers and merchant point-of-sale use cases across Africa. The goal was a payments experience as smooth as Cash App, localized for the African market and optimized for low-bandwidth networks.
The Challenge
Payments apps require handling regulatory compliance, edge-case failure modes, and network latency, all without breaking UX. Trust signals and perceived security were critical to user adoption.
The Solution
Flutter with Dart for a polished, performant mobile build. Flutterwave for payment processing. An offline-capable transaction queue that syncs when connectivity returns. End-to-end transaction encryption.
Features
What Was Built
P2P Transfers
Send money to contacts instantly using just a phone number or username.
Merchant Payments
QR-code based merchant payments with a built-in sales dashboard.
Offline Queue
Transactions queue locally and execute automatically when connectivity returns.
Transaction History
Full history with receipts, status tracking, and one-tap dispute initiation.
Outcomes
Results
P2P transfers complete in under 3 seconds on average
Works on 2G/3G with offline transaction queuing
Onboarding to first transaction in under 2 minutes
Stack
Technologies Used
Flutter
Dart
Node.js
PostgreSQL
TypeScriptWork Together
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