What are the best practices for developing an education app that effectively eng

I’m planning to develop an education app aimed at students of various age groups. I want the app to be engaging, interactive, and effective in improving learning outcomes. I’m particularly interested in:

Features that increase student engagement (quizzes, gamification, progress tracking, etc.)

Effective UI/UX design for different age groups

Choosing the right technology stack for scalable and smooth performance

Methods to personalize learning for individual users

Security and privacy considerations, especially for minors

What strategies, frameworks, or real-world examples can help ensure the app is both educationally effective and enjoyable to use?