I want a polished mobile application that lets me oversee every financial and membership detail of my gym from a single screen—on both iOS and Android. The two non-negotiable functions are: • Robust membership management: add, edit, suspend or cancel members, track plan type and renewal dates, and surface quick-view analytics so I can see active versus expired subscriptions at a glance. • Integrated payment processing: collect fees inside the app, log payouts automatically, and store a clear history that can be filtered by day, week or month for easy reconciliation. Role-based access is essential. I should have full administrative control, trainers will have a restricted view (only what they need for their clients and commissions), and members will see their own profile, invoices and renewal reminders. I am open to frameworks such as Flutter or React Native as long as the final result is smooth, secure and ready for App Store and Play Store submission. Deliverables • Production-ready iOS & Android apps • Source code and build instructions • Lightweight admin guide (PDF or video walkthrough) If anything is unclear, feel free to ask before we lock the scope.