Build a Duolingo-Style Quranic Arabic Learning App (React Native or Flutter)

I am developing a Quranic Arabic curriculum for Islamic schools and need a simple, engaging mobile app that complements printed picture books. The app should feel like Duolingo — short daily lessons, audio pronunciation, and fun exercises — but focused entirely on Quranic Arabic vocabulary and basic grammar aligned with my picture books. The app must be published to both the Apple App Store and Google Play Store. I will provide all content (vocabulary, images, audio files, and lesson structure). Your job is to build and deploy the app. WHAT I NEED Core features required: Lesson screens with vocabulary words, images, and audio playback At least 2 exercise types (e.g., tap the correct picture, fill-in-the-blank) Simple progress tracking (lessons completed, streaks) Clean, kid-friendly UI with Arabic text support (right-to-left) Login or guest mode (no complex backend required) App Store + Google Play submission (I will provide developer accounts) Nice to have (not required for base price): Push notifications for daily reminders Stars/badges reward system Admin panel to update lesson content without a new app release WHAT I WILL PROVIDE All vocabulary content and lesson structure Picture book images and illustrations Audio recordings (or guidance on what to record) Apple Developer account and Google Play Developer account Branding/color preferences DELIVERABLES Milestone 1: Wireframes/prototype for approval (before coding begins) Milestone 2: Working beta with at least 5 complete lessons Milestone 3: Final app submitted to App Store and Google Play Source code delivered to me at project end HOW TO APPLY Please include in your proposal: Links to 1-2 mobile apps you have built (especially education or language apps) Which framework you recommend (React Native vs. Flutter) and why Your estimated timeline and milestone breakdown Your answer to this screening question: "What is one challenge specific to building an Arabic language app and how would you solve it?"