Engineering delivered
- Android & iOS Applications
- Responsive Web Platform
- Landing Website
- Admin & Sub-admin Dashboards
- Frontend & Backend Engineering
- API Integrations
- Wallet Infrastructure & Continuous Product Enhancements
Portfolio/Koyn
Case study · Cryptocurrency Exchange Platform
A modern cryptocurrency exchange platform for selling digital assets with instant Naira settlements.

Project overview
A modern cryptocurrency exchange platform enabling users to sell digital assets, receive instant Naira settlements, manage utility payments, and enjoy a fast, secure trading experience across mobile and web.
At a glance
The product, platforms, market, and engineering responsibility behind the engagement.
| Metric | Details |
|---|---|
| Industry | FinTech |
| Product Type | Cryptocurrency Exchange Platform |
| Status | Live |
| Launch Year | 2023 |
| Market | Nigeria |
| Google Play Downloads | 10K+ |
| Google Play Rating | ⭐ 4.0/5 (1.1K+ reviews) |
| Apple App Store | Available on iPhone & iPad |
| App Store Rating | Public listing available (rating varies by storefront) |
| Platforms Delivered | Android • iOS • Web |
| Product Ecosystem | Mobile App • Responsive Web Platform • Landing Website • Admin Dashboard • Sub-admin Dashboard |
| Abango's Role | Full-Stack Engineering (Frontend & Backend), Product Development |
Google Play publicly displays download counts, ratings and review totals. Apple publishes the app listing but does not publicly provide download figures, and ratings may vary by country storefront.
Delivery detail
Koyn showcases Abango's expertise in building blockchain-powered fintech solutions that combine secure cryptocurrency trading, wallet infrastructure, and everyday digital payment services within a unified ecosystem. The platform delivers fast, reliable transaction processing through scalable mobile, web, and enterprise administration systems.
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