I am looking to develop a simple yet functional Android app for educational video content. The core functionality will include 1. OTP Login via Mobile Number • User registers/logs in using their mobile number. • OTP verification required (Firebase or similar service). 2. Video Content • I will upload short educational videos. • Users should be able to view these videos after login and payment. 3. Payment Gateway Integration • User must pay a small fee (a few rupees) to access the content. • Payment should be processed securely (suggest Razorpay, Paytm, or UPI). • Option to set up auto-payment mandate for recurring charges (monthly or weekly). 4. Basic Admin Panel (optional but preferred) • To upload/manage videos • View users and transactions