Cross-Platform Non-Custodial Crypto Wallet

I’m ready to build a production-grade, non-custodial crypto wallet that runs smoothly on iOS and Android. Private keys must never leave the user’s device, and the experience needs to feel as simple as any mainstream payments app.

Core feature set
• Send and receive cryptocurrencies with QR scanning and shareable wallet addresses
• Real-time and historical transaction list with clear status indicators
• Multi-currency support from day one (Bitcoin, Ethereum/ERC-20 preferred) and an architecture that lets us add new assets quickly

Security and recovery
• Biometric authentication (Face ID / Touch ID / Android Biometrics)
• Optional two-factor authentication before approving a transaction
• Passphrase backup that users can export, verify, and import at any time

Under the hood I expect:
– BIP-39/44 HD wallet generation, AES-256 encryption for key storage, and a zero-knowledge approach so no sensitive data ever touches my servers.
– A clean, well-documented codebase—React Native, Flutter, or native (Swift + Kotlin) are all fine as long as the result is performant and maintainable.
– Unit tests and basic CI so new coins or features can ship with confidence.
– Signed builds ready for TestFlight and Google Play internal testing, plus hand-off docs that let my team publish future updates on our own.

When you reply, outline how you’ll tackle key management, multi-chain integration, and security auditing, along with a realistic timeline for an MVP and public store releases.