Interactive Story-Filling Mobile App

I'm looking for a mobile app for both iOS and Android. The app will allow users to register using their email and password, fill in the blanks in stories provided by the app admins, and answer daily questions for two people. The stories will primarily be of the entertainment type.

Key Requirements:
Cross-platform mobile app development (iOS and Android)
User registration system using email and password
Admin panel for story management
Engaging and fun entertainment stories
Daily questions for two people
Ideal Skills:
Proficiency in mobile app development
Experience with cross-platform tools like Flutter or React Native
Skills in creating user-friendly interfaces
Knowledge in implementing secure registration systems
Ability to create an admin panel for content management
Please provide your proposals, and I'll elaborate further on the project details.