We need a app for selling products online.

I am looking for a skilled developer who can create an app for selling physical goods online. The app should be compatible with both iOS and Android platforms.

Skills and experience required:
- Proficiency in app development for both iOS and Android platforms
- Familiarity with e-commerce functionalities and payment gateways
- Ability to integrate a user-friendly interface for browsing and purchasing products
- Experience in implementing secure and reliable transaction processes

The app should include the following specific features:
- User registration and login
- Product catalog with detailed descriptions and images
- Shopping cart and checkout functionality
- Secure payment options
- Order tracking and delivery status updates
- Customer reviews and ratings
- Push notifications for promotional offers and updates

If you have a detailed list of features in mind, please provide it, and we can discuss further customization options.