Buy Video Shopping App

I'm looking to purchase a ready-made video shopping app, compatible with both iOS and Android platforms. The app should include:

- In-app purchasing
- Video reviews

Additionally, it must support Credit/Debit Card payment gateway integration.

Ideal Skills and Experience:
- Experience in mobile app development
- Familiarity with e-commerce and video integration
- Knowledge of payment gateway integration, especially Credit/Debit cards