Education Webapp OMR Integration

I have already built the core of an education webapp on the Lovable platform, focused entirely on interactive quizzes. Now I want to take it live on Google Play and, before that, embed a dependable Optical Mark Recognition layer so students can snap their answer sheets and receive instant results... (Budget: ₹12500 - ₹37500 INR, Jobs: Android App Development, JavaScript, Mobile App Development, Mobile Development, PHP, Web Development)