A.I Body measurement app for kids

I am looking for a developer who can create an A.I body measurement app for kids that will be available on both iOS and Android platforms. The app should have the following key features:
- Measurement of height, waist circumference, shoulder distance, and wrist-to-shoulder length
- Data tracking to keep a record of the measurements
- Analysis of the data to provide insights and recommandation on the uniform they should buy

The target age group for the app is 8-12 years old.

Ideal skills and experience for this job include:
- Proficiency in app development for both iOS and Android platforms
- Experience in integrating A.I technology into mobile apps
- Knowledge of data tracking and analysis techniques

Things to be built
1 User Registration and Profile Management
2 Camera Integration
3 AI Algorithm linking such as ( Posenet or any other AI modal )
4 Measurement Calculation
5 Recommandation to our ecommerce uniform (hyperlink)
6 Cross-Platform Development
7 Database Integration
8 User Authentication and Security
9 Testing and Quality Assurance
10 Integration with Payment Gateway (if needed / maybe no need as all payment is in e-com)
11 App Deployment to App Stores
12 Maintenance and Updates (per year how much)

If you have the necessary skills and experience, please submit your proposal.