Construction Materials Booking App

I’m building a cross-platform application that lets customers book construction materials while suppliers and administrators manage everything from stock to delivery in real time. The product must run smoothly on iOS, Android, and the web with a single, consistent code-base... (Budget: ₹12500 - ₹37500 INR, Jobs: Android, Backend Development, Flutter, iOS Development, iPhone, Mobile App Development, PHP, React Native)