A mobile trading terminal for Binance Spot Testnet. Live candles, a live order book, and real signed orders that rest on the book and fill, using the test network's play money.
This is the real app, built for the web and running in your browser. Tap around. Anything you add stays on your device.
Live prices, charts and the order book come straight from Binance. Placing orders is switched off here: it needs your own testnet keys in the mobile app.
Live candlesticks (1m to 1d) and a live order book with depth bars, over one self-healing WebSocket per screen.
Market and limit orders signed on the phone (HMAC-SHA256) and checked against the exchange's size and price rules first, so errors read as plain sentences instead of codes.
Syncs with the exchange's clock, so phone clock drift never looks like a bad API key.
Email accounts on Supabase; exchange keys stay in the iOS keychain / Android keystore and never reach a server, with Face ID or fingerprint unlock.
Test network only, by design: signing on the device is fine for play money, and the README explains why a real-money version would move it to a server.
Mobile trading terminal on Binance's test network: live charts, order book, real orders.
A mobile trading terminal for Binance Spot Testnet. Live candles, a live order book, and real signed orders that rest on the book and fill, using the test network's play money.
Live candlesticks (1m to 1d) and a live order book with depth bars, over one self-healing WebSocket per screen.
Market and limit orders signed on the phone (HMAC-SHA256) and checked against the exchange's size and price rules first, so errors read as plain sentences instead of codes.
Syncs with the exchange's clock, so phone clock drift never looks like a bad API key.
Email accounts on Supabase; exchange keys stay in the iOS keychain / Android keystore and never reach a server, with Face ID or fingerprint unlock.
Test network only, by design: signing on the device is fine for play money, and the README explains why a real-money version would move it to a server.
Built with:Expo, React Native, TypeScript, Supabase, WebSocket
