Android Educational App Development

I want to launch a simple yet solid educational app for Android. The first release should let users browse short lessons, take multiple-choice quizzes, and see their progress at a glance. No payment gateway or complex social features for now—just a clean, fast, offline-friendly learning tool.

Here is what I’m after:
• Native Android build in Kotlin or Java.
• A lightweight SQLite (or Room) database that stores lessons, questions, and user scores locally.
• Three core screens: lesson list, lesson detail with media support (text, images, short video links), and a quiz module with instant feedback.
• A minimal, modern UI that follows Google Material guidelines.
• Source code, build instructions, and a short setup guide so I can update the content myself later.

If you have experience turning educational content into engaging mobile experiences and can keep the first version streamlined, I’d love to see your approach, timeline, and a quick portfolio reference.