Cross-Platform To-Do List Mobile App

I'm looking for a proficient mobile app developer to create a to-do list application for both iOS and Android. The app needs to incorporate standard to-do list features and support Email and password for user authentication. Key Features: - Cross-platform functionality: The app should be fully functional on both iOS and Android systems. - Standard To-Do List Features: The app should have all the basic functionalities of a typical to-do list. - User Authentication: The app must support secure login via Email and password. - Push Notifications: Notify users of upcoming tasks and deadlines. - add a new feature of real time zones, from which user have to right on tasks right on the time they decided. Unlike other apps where user can right check tasks whenever he wants rather than clicking on time Ideal Skills: - Proficient in mobile app development for both iOS and Android. - Experience in creating to-do list applications. - Knowledge in implementing secure user authentication methods. I am open to suggestions for unique features that can be added to enhance the user experience. Creativity and previous experience with similar projects will be highly valued.