CoinSyncer

What CoinSyncer is (and the problem it solves) CoinSyncer is a crypto portfolio tracking app that helps users monitor their cryptocurrency holdings across multiple exchanges and wallets in one place. Many users hold assets on different platforms, making it difficult to track balances accurately. CoinSyncer solves this by periodically syncing balances and presenting them in a single, easy-to-understand dashboard. Instead of relying on real-time data, CoinSyncer focuses on reliable scheduled updates throughout the day and notifies users when fresh data is available. How it was built CoinSyncer was designed with a stability-first approach: * Users securely connect exchanges and wallets * The backend runs scheduled sync jobs multiple times a day * Balances are fetched, normalized, and stored consistently * The frontend displays the latest synced data in a clean interface * Users receive notifications once syncing is complete This approach avoids unnecessary API rate-limit issues while keeping portfolio data accurate and predictable. Technology stack used Frontend: Angular Mobile App: Capacitor (Android packaging) Backend: Symfony Database: MariaDB