Courtyard positions itself as a bridge between physical trading card collecting and digital asset management. The iOS application allows collectors to transform their physical sports cards, Pokémon cards, and other collectibles into authenticated digital assets. Each physical card undergoes professional grading and storage while users retain ownership through digital certificates. This approach addresses common collector concerns about preservation and liquidity without sacrificing the tangible aspect of traditional collecting. The core functionality revolves around three main components: card submission, digital marketplace, and collection management. Users can initiate submission processes through the app, shipping physical cards to Courtyard's secured facilities where they're authenticated, graded, and stored. Once processed, digital representations appear in the user's collection with detailed certification information. The integrated marketplace enables trading and selling of these digitized assets, with transactions recorded on blockchain for transparency. Collection management tools provide organizational features including value tracking and condition monitoring. Real-world usage scenarios demonstrate the app's practical applications. Collectors preparing for major conventions can use the platform to pre-arrange trades or verify card authenticity before transactions. Parents managing their children's Pokémon collections find value in the digital inventory system that prevents loss or damage to valuable cards. Sports memorabilia investors utilize the platform's valuation tools to monitor market fluctuations across their portfolio. The interface maintains accessibility for casual collectors while offering depth for professional traders, though some users note the card submission process requires careful packaging and shipping considerations. Early user feedback highlights the convenience of combining physical ownership with digital flexibility. Reviews indicate particular appreciation for the professional grading service and secure storage solutions, eliminating concerns about card preservation. Some users mention occasional synchronization delays between physical card processing and digital representation updates. The marketplace functionality receives positive remarks for its straightforward transaction process, though a small number of users suggest expanding filtering options for larger collections. Overall sentiment emphasizes the platform's successful addressing of authentication and storage challenges in collectibles. The application delivers a well-executed solution for modernizing traditional card collecting while maintaining physical asset value. Its strongest aspects include the integrated authentication system and blockchain-backed ownership verification. Areas for potential improvement involve streamlining the initial card submission workflow and expanding marketplace search capabilities. The platform represents a significant step forward for collectibles management, though users should anticipate a learning curve when navigating the digital-physical hybrid model.