Cross-Platform Event Hosting App

I want to create a slick, modern event-hosting mobile app—think Partiful’s ease and vibe—available on both iOS and Android from day one. The core journey should let a host open the app, spin up an event in seconds, invite friends by contact list or shareable link, track RSVPs in real time, chat in a dedicated thread, nudge late responders with push notifications, and, when needed, collect payments or split costs right in the flow.

A clean, social-first interface is essential, and the build must feel fully native on each platform even if you choose Flutter, React Native, Kotlin Multiplatform, or another cross-platform stack. I’m open to your technical preference as long as performance, offline caching for invites, and secure user data are covered. A lightweight web admin dashboard for basic analytics (attendance, engagement, payment status) should accompany the mobile release.

Deliverables I need from you
• MVP builds submitted to TestFlight and Google Play internal testing
• Scalable backend (Firebase, Supabase, Node + PostgreSQL, or your proven alternative) with real-time updates
• Admin dashboard behind a secure login
• Complete, clean source code with README for local setup and deployment
• Handoff session and 30-day post-launch bug support

Acceptance criteria
• App installs and signs in on current iOS & Android versions without crashes
• Creating, sharing, and updating events reflects instantly across devices
• Push notifications fire for invites, chat messages, and event reminders
• Payments (Stripe or peer-to-peer) process in sandbox mode during testing
• All items above demonstrated during a live walkthrough

When you send your proposal, please link to past mobile projects that highlight similar social or event functionality so I can gauge fit quickly. I’m excited to see what you’ve built and how you’d bring this idea to life.