I’m building an online investment membership programme and need both a responsive website and companion mobile apps. Each member contributes ₹1,000 every month for 12 months and the system must comfortably scale to at least 1,00,000 simultaneous users. Users will register with a straightforward email-and-password flow; no social or phone log-ins are required. Once signed in they should be able to pay the first instalment instantly through either direct bank transfer (UPI/NEFT/IMPS, etc.) or the popular digital wallets we approve. A dynamic QR code on the pay page will make the same options available offline. I expect a secure, cloud-ready back-end that logs every contribution, schedules the remaining payments automatically, issues reminders, and updates an admin dashboard in real time. The dashboard must show total funds received, active versus inactive members, and overall progress toward the one-lakh-member goal, supporting the larger seed-to-scale financial roadmap. Deliverables • Responsive website with member portal and admin panel • Android and iOS apps that consume the same API • Payment gateway integration for bank transfers and digital wallets, plus QR-based checkout • Deployment documentation and a brief hand-over session Acceptance criterion: a test user can register with email, make a ₹1,000 payment, view their 12-month schedule, and have that transaction immediately visible in the admin console.