Cryptocurrency Tracker
Flutter App with Portfolio and Admin Panel

Everything below is open to anyone - nothing to request and nothing to install. The app demo is the real Flutter app compiled in demo mode and running in your browser.
What it does
- Markets list: top 250 coins with price, 1h/24h/7d change, market cap, volume, 7-day sparkline, sorting, category chips
- Global market header and trending strip
- Coin detail: price chart (1h, 24h, 7d, 30d, 90d, 1y, all), stats, description, links, exchange tickers
- Candlestick chart mode (CoinGecko OHLC, from 24h) with crosshair and open/high/low/close tooltip
- Crypto Fear & Greed index from Alternative.me (credited, feature switch in the console)
- Community sentiment on the coin page (CoinGecko votes, labelled 'Not a forecast')
- Search
- Watchlist (local-first)
You need
- Flutter >= 3.41 (stable), Dart ^3.7
- Android: minSdk 24, compileSdk 36, targetSdk 36
- iOS 15.0+, Xcode with CocoaPods on a Mac
- Node.js 22 and npm
- Firebase CLI and Java 21+ for the emulators