Cross-Platform Video & Voice Calling App (Similar to Friend App)

I am looking for an experienced Flutter or React Native developer to build a cross-platform mobile application for Android and iOS, similar to the Friend App. The app should have a modern, premium, and... (Budget: ₹37500 - ₹75000 INR, Jobs: Android, Backend Development, Flutter, iPhone, Mobile App Development, Payment Gateway Integration, PHP, React Native)