I want to launch a full-featured mobile application that lets users browse, purchase, and manage on-demand services rather than physical products. The exact platform is still open—iOS, Android, or a single cross-platform build are all on the table—so part of your job will be to guide me toward the most efficient tech stack (React Native, Flutter, native Swift/Kotlin, etc.) given time-to-market and long-term maintenance. Core flow • Users discover and pay for professional services inside the app. • A clean, intuitive checkout is essential, with secure payment options (Stripe, Apple Pay, Google Pay, or similar). Feature set I’m looking for functionality beyond the usual “appointment booking / provider profile / review” trio; we can refine the roadmap together once you understand my niche. Please outline any smart additions you’d propose—think real-time availability, tiered service bundles, in-app messaging, loyalty credits, or whatever you feel will raise the bar. What I need from you 1. A clickable prototype for early feedback 2. The production-ready iOS/Android builds (or a single cross-platform package) 3. Source code in a well-documented repo 4. Post-launch support window for bug fixes If you have shipped service-based marketplaces before, share live links and briefly note the stack you used. Let’s talk strategy, milestones, and how we can turn this idea into a polished, revenue-ready product.