Develop Professional Cross-Platform App - 15/09/2025 19:31 EDT

I need to transform my existing vibe code into a professional and usable app. The app should be developed for both iOS and Android platforms. Its primary purpose is to serve as a productivity tool. Although the app is not primarily a social networking app, it should include system that allows users to post, share photos, comment , like and save as essential features. The app has already been created to a point that would provide a road map of what I am looking to achieve .The app will be a free trial app with premium features accessible after purchase or subscription
I already have Apple developer account setup

Key Requirements:
- Develop the app for both iOS and Android platforms.
- Focus on productivity tool functionality.
- Integrate a messaging system.

Ideal Skills and Experience:
- Proficiency in developing cross-platform apps for iOS and Android.
- Experience in creating productivity tools.
- Ability to implement messaging systems effectively.