I’m looking for a Kolkata-based developer who can take my idea from concept to a working mobile app on both iOS and Android. Because I’d like to collaborate in person when needed, proximity to Kolkata, West Bengal is important. Here’s what I need: • Functional prototype for iOS and Android built with a cross-platform framework you’re comfortable with (Flutter, React Native, or similar). • Clean, modern UI/UX with a few rounds of visual mock-up revisions before development starts. • Basic back-end setup (user auth, data storage, and a simple admin panel). • End-to-end testing on real devices plus preparation for App Store and Google Play submission. I’ll provide wireframe sketches and core feature notes once we connect; you translate those into a production-ready build, keep me updated through regular milestones, and deliver full source code and project documentation. If you’re in or near Kolkata and have shipped at least one cross-platform app, let’s talk about timelines and next steps.