Competitive Exam Prep Flutter App

I’m building a streamlined Android application for competitive-exam preparation and need it developed end-to-end in Flutter, backed by a web-based admin panel. The focus is on speed, security, and an interface so clean that first-time users can start a mock test in seconds.

Core learner features must include
• Email/OTP user login and signup
• Course catalogue with purchase flow (Razorpay)
• Pre-recorded video lectures and downloadable PDF notes
• Full-length and sectional mock tests with timed sessions, instant scoring, analytics, and progress tracking
• Smart search, push notifications, and in-app progress dashboards

Admin panel responsibilities
• Upload and organise videos, PDFs, and course bundles
• Create, edit, and schedule mock tests with answer keys and explanations
• Manage students and course enrolments
• Send targeted or global push notifications

Technical expectations
• Flutter for a single maintainable codebase, Material 3 UI, responsive up to tablet size
• Secure authentication, efficient state management, encrypted local storage, and clean, well-commented code
• Payment handled through Razorpay’s latest SDK, with webhook verification on the server side
• Source code, build instructions, and all assets handed over on final sign-off

When you respond, please include links to any similar education or quiz apps you have created, a brief outline of your proposed stack (e.g., Firebase, Node.js, Laravel, etc.), the estimated timeline from kick-off to store release, and a ballpark cost broken down by major milestones (app, admin panel, testing, deployment).

My aim is a simple, fast, and reliable learning companion that helps students focus on mastering content rather than figuring out how the app works.