Senior Citizen Communication App

I'm looking for a skilled mobile app developer to create a communication-focused app for senior citizens. The app should allow them to easily connect with family through video calls and text messaging.

Key features:
- Communication: Video calls and text messaging with family.
- Accessibility: Voice command, large text options, simplified navigation.
- Secure Shopping: Ability to buy securely via Amazon.

Ideal skills and experience:
- Mobile app development expertise, especially for accessibility features.
- Experience with integrating video call and messaging functionalities.
- Knowledge of secure e-commerce integration.

I'm looking for someone who can create an intuitive and user-friendly interface tailored for senior citizens.