Flutter Exam Prep App

I’m building a full-featured exam-preparation application in Flutter that must run smoothly on both iOS and Android from day one. The app revolves around a large MCQ question bank, so practice tests with instant explanations, timed mock exams, topic-wise performance dashboards, weak-area analytics, note taking, PDF viewing, and embedded video lessons all need to feel seamless.

Only social sign-in is required—Google and Facebook through Firebase Auth or the equivalent flow in Supabase so that piece should be wired up out of the box. Whichever backend you prefer (Firebase or Supabase) must scale effortlessly from an initial ±5 000 users to 50 000 + active learners without re-architecture.

A paid subscription tier sits on top of the free core, so Stripe, Razorpay, or a comparable payment gateway has to be integrated cleanly with in-app purchase hooks and a lightweight entitlement check. I’ll also need a web-based admin panel where I can upload questions, attach explanations, manage video and PDF content, and flag items to the premium catalogue.

To move ahead, send me:
• A short portfolio link or repo that shows comparable Flutter work (education apps are a plus)
• Your preferred tech stack (libraries, state-management pattern, any hosting choices)
• A realistic timeline with milestone dates and a cost breakdown per milestone

We’ll review the plan together, freeze the scope, and then kick off. Looking forward to collaborating with someone who has already solved the scalability and subscription puzzle in Flutter.