I need a full-featured mobile application that runs natively on both iOS and Android. The core purpose is to streamline everything around cosplay services, from discovery to payment, for two distinct user groups: Visitors and Service Providers. Here’s the flow I have in mind. A visitor opens the app, browses a curated list of service providers who offer commissions—costume making, makeup, photography, props, you name it—then checks an always-updated calendar to pick an available slot, books instantly or sends a request for approval (both options must be supported), pays securely, and chooses a delivery method that suits the service. At the same time, the visitor can scan an events section that aggregates upcoming cosplay conventions and gatherings across the country, helping them plan bookings around real-world dates. Service Providers, on the other hand, need an interface to publish offerings, set per-pax pricing, manage availability, accept or decline requests, make payment to admin of the app for applying every single commission track and track payouts. They should also see a snapshot of upcoming national events so they can decide whether to run promotions or adjust capacity. Key modules I must see working: • Account creation & profile management for Visitors and Service Providers • Commission marketplace with rich listings, filters, and in-app messaging • Dual booking engine (instant confirmation or request/approval) tied to a live calendar • Secure payment gateway with split payouts and transaction history • Country-wide cosplay events feed (manual CMS entry is fine for launch) • Delivery options selector that adapts to the chosen service (e.g., digital files, courier shipping, on-site pickup) • Push notifications, email alerts, and basic analytics High-level acceptance criteria: the app passes App Store and Play Store review, payments complete successfully in a sandbox test, and bookings appear correctly in both user calendars with the chosen confirmation mode honored. If you can architect, design, and code this end-to-end—leveraging tools like Flutter, React Native, or native Swift/Kotlin as you prefer—let’s talk timelines and milestones.