On-Demand Service Marketplace App

A startup founder approached us with a Figma prototype and a deadline: launch a fully-functional on-demand services marketplace in 4 months for a regional launch event. We delivered a two-sided marketplace (consumers + service providers) on Flutter, integrated payments, GPS tracking, in-app chat — and submitted to both app stores with first-time approval.

• Two-sided marketplace: separate provider app + consumer app with shared backend
• Real-time features: booking, GPS tracking, in-app chat, push notifications
• Marketplace payments with KYC, escrow, and instant provider payouts
• Aggressive 4-month deadline tied to a regional launch event
• iOS + Android from day one — no native code reuse possible

1. Flutter for both apps — single codebase, 60% faster development versus native
2. Firebase backend for rapid iteration: Firestore, Auth, Cloud Functions, FCM
3. Stripe Connect for marketplace payments with automatic provider payouts and KYC
4. Google Maps Platform for real-time location, routing, and ETAs
5. Weekly TestFlight + Play internal-test releases for tight feedback loops with the founder team

• Real-time provider location tracking with WebSocket fallback<\\\\\\\/li>
• In-app chat with image and location sharing<\\\\\\\/li>
• Stripe payments with split fees and instant payouts<\\\\\\\/li>
• Push notifications for booking lifecycle events<\\\\\\\/li>
• Provider onboarding with document upload and verification<\\\\\\\/li>
• Rating & review system for both sides<\\\\\\\/li><\\\\\\\/ul>\\\"]\"]"]

• 50,000 downloads in 30 days post-launch
• 4.7-star rating on both app stores
• App store approval on first submission for both iOS and Android
• $200K+ GMV in first month
• Founder closed Series A within 90 days of launch, citing app traction