Jul 15, 2025
Sports Card Investor Mobile App Redesign/ Rebuild
Overview
I collaborated with another developer to build the Sports Card Investor mobile application—a comprehensive marketplace analytics tool for sports card collectors. The app serves as a free resource for tracking card values, market trends, and sales data across 11 different marketplaces.
Technical Implementation
We developed the application using React Native to ensure a seamless experience across both iOS and Android platforms. Key technical aspects included:
Building custom UI components to display complex market data intuitively
Integrating a chart library to visualize price trends and market movements
Implementing efficient data management for browsing extensive card catalogs
Creating responsive interfaces that handle player variations, grades, and different card categories
Key Features Delivered
Real-time price tracking across multiple marketplaces
Advanced filtering and search capabilities for cards, sealed products, and TCG items
Favoriting system for personal collection management
Market trend analysis with hot/cold indicators
Comprehensive card comparison tools
Impact
The app provides collectors—from beginners to seasoned professionals—with powerful tools to make informed decisions in the sports card market, all within a polished, user-friendly mobile experience.