React Native · Bitcoin Wallet

ChillyWallet

A self-custody Bitcoin wallet — HD keys (BIP39/44) generated and held on-device, biometric-locked, with QR send and receive.

Client: iOS & Android · TestFlight
Year: 2025

ChillyWallet is a self-custody Bitcoin wallet where the keys never leave the device. It generates a standard HD wallet (BIP39/BIP44), backs it up with a mnemonic recovery phrase, and locks everything behind Face ID / Touch ID.

The cryptography leans on audited primitives (@scure/bip32, @scure/bip39, @noble/secp256k1) with keys held in the platform Keychain, wrapped in a clean React Native interface for balance tracking and QR-based send and receive. Cross-platform iOS and Android, on TestFlight.