Android Education App Development

I'm looking for an experienced mobile app developer to create an educational app for the Android platform.

Key requirements include:
- User-friendly interface
- Interactive learning modules
- Progress tracking features
- Offline access to content
- Integration with payment gateways (if required)

Ideal skills and experience:
- Proven track record in Android app development
- Strong background in education-focused applications
- Expertise in UI/UX design
- Knowledge of backend development and database management