Bitcoin Wallet App Build

I want a clean, lightweight mobile wallet dedicated to Bitcoin only. The core job is to design and code an app that lets users create or import a BTC address, view their balance, send and receive coins, and track recent transactions in real time through reliable blockchain APIs... (Budget: $5000 - $10000 AUD, Jobs: Android, Blockchain, Flutter, iOS Development, iPhone, Mobile App Development, PHP, React Native)