Cross-Platform Strength Training App

I’m ready to launch a mobile experience focused on daily strength-training and I need complete development for both iOS and Android, plus a web-based admin dashboard. User-facing app Users begin with an onboarding form that records body measurements, past health issues, and current fitness level so that the training plan can adjust automatically. Each day they receive a clearly structured strength-training routine, with progress saved to the cloud. Purchases and subscriptions must process securely through a gateway that accepts credit/debit cards and PayPal. Admin dashboard From a browser I want to create or edit exercises, set daily schedules, view each member’s adherence, and handle every aspect of payments and subscriptions—refunds, pauses, discounts, and basic analytics—all in one place. Technical expectations • Native or cross-platform code that ships smoothly to both stores • PCI-compliant payment integration with test and live modes • GDPR-ready data handling, basic unit tests, and well-commented source code Deliverables - iOS build (App Store/TestFlight ready) - Android build (Play Console ready) - Responsive web admin panel - Integrated, functioning payment gateway - Source code repository with setup instructions Let me know the stack you recommend, your timeline, and links to any similar fitness or fintech projects you’ve completed.