Cross-Platform Task Manager App

I’m looking for someone who can build a straightforward productivity app that runs smoothly on both iOS and Android. The first release will focus solely on task management: users need to be able to add, edit, prioritise, complete and delete tasks in a clean, intuitive interface... (Budget: ₹1500 - ₹12500 INR, Jobs: Android, Flutter, iOS Development, iPad, iPhone, Kotlin, Mobile App Development, React Native)