I need an end-to-end system that lets my fitness club run smoothly while giving members a polished mobile experience. On the web side, the software must handle member management, class scheduling, and secure payment processing in one place so staff can sign people up, take bookings, and reconcile transactions without jumping between tools. For members, the native iOS and Android apps should mirror the web database in real time, allowing them to: • track individual workouts and see progress reports that pull from the same records staff view, • reserve or cancel classes instantly, and • follow personalised nutrition plans generated from the back-office portal. Whether you prefer Flutter, React Native, or fully separate Swift/Kotlin codebases, the apps have to feel identical in features and design, use push notifications for booking reminders, and support Apple Pay / Google Pay alongside normal card gateways. Deliverables • Cloud-hosted admin dashboard with role-based access • iOS and Android member apps published to both stores • REST or GraphQL API connecting all front ends • Complete source code, build scripts, and basic test suite • Deployment and handover documentation Acceptance criteria 1. All member, workout, nutrition, and payment data stays in sync across devices in under five seconds. 2. A new user can register, purchase a membership, and book a class without staff intervention. 3. Progress reports compile automatically from logged workouts and display weekly trends. 4. Apps pass App Store/Play Store review and achieve a minimum 90 % Lighthouse performance score. If you have a proven track record with fitness or subscription platforms, I’ll be happy to walk you through the existing workflows and branding assets so we can agree on milestones and a realistic launch timeline.