Educational Android & iOS App Development

I'm looking for a proficient developer who can create an Android and iOS app focused on online testing and question paper generation for students and educational institutions.

Key Features:
- The app should have an educational and formal user interface.
- It should support the automatic generation of question papers.
- A crucial aspect of the app will be its performance analytics feature. This will track and report user performance over time.
- The app needs to support various types of questions including multiple choice, short answer, and essay.

Ideal Skills:
- Extensive experience in cross-platform app development.
- Proven track record of developing educational apps.
- Strong understanding of question generation algorithms.
- Expertise in incorporating performance analytics into apps.

Please provide examples of similar projects you've completed in your application.