We are building a finance-style collectibles marketplace app (focused on trading cards such as Pokémon and baseball cards) and are looking for a single development firm or team to handle both the mobile app design/development and the backend pricing + liquidity logic.
The final product should feel similar to a stock trading app (e.g., Robinhood), but for collectibles. The experience must be modern, fast, data-rich, and intuitive for card collectors and traders.
✅ Scope of Work1. Mobile App (UX + Frontend)
Figma-based UI/UX design (clean, professional, mobile-first)
Development in React Native or Flutter
Core screens:
Home feed with trending cards
Card scanner (camera integration)
Portfolio manager
Historical price charts (with overlays)
Comparison view with spread calculation
2. Backend Development
Set up secure backend API (Node.js, Python, or equivalent)
User authentication & portfolio tracking
Ingest raw card pricing data via external API (daily pulls)
Structure and store card data (PostgreSQL or similar)
3. Pricing & Liquidity Logic (Custom Engine)
Implement proprietary pricing model:
Implement liquidity score model:
Sales frequency
Time on market
Price spread
Output results as APIs consumable by the app frontend
💡 What We’re Looking For
🏁 Deliverables (Phase 1 MVP)
Fully functioning mobile app (testable via TestFlight or APK)
Figma file with UI/UX design
Backend hosted (AWS/GCP/Heroku)
Live API endpoints for:
Price data
Liquidity score
Portfolio analytics
Documentation for API and logic formulas
📎 To Apply:
Please include:
Examples of past finance-style apps or marketplaces
Confirmation you can handle both app and pricing logic
Estimated time and cost for MVP build
Your preferred tech stack