Work / Fintech
Crypto intelligence on Android
Live market data, large-transfer alerts and AI price predictions in one Android app.
The client came to us with a clear product idea, live prices, whale-transfer alerts, AI price predictions and market sentiment in one dark, TradingView-style Android app with a premium tier, and a fixed budget. They needed a working, store-ready MVP quickly, with no surprises on cost.
We wrote the development plan first, then quoted a fixed price split into four milestones: foundation and free tier, live premium features and billing, AI layer and backend, and QA and store launch. Each milestone was paid on delivery of an installable build, the source code and screenshots.
A founder launching a crypto-intelligence app · March to April 2026
What was built
- React Native Android app: live BTC and ETH prices, candlestick charts across seven timeframes, a whale-transfer feed, a sentiment gauge and premium gating
- Google Play Billing subscription with entitlement checks
- Node.js and Express backend in Docker: a caching API proxy for CoinGecko, Whale Alert and the Fear & Greed index, plus OpenAI-generated 24-hour predictions refreshed on a schedule
- Follow-on features we added to the same codebase: a crypto bubbles view, full price history with date jumps, a liquidations heatmap and a UI refresh
- Store assets, a signed release build and a documented handover
React NativeNode.jsDockerOpenAI API
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