CardCastle offers fast, accurate scanning that handles standard cards reliably. The multi-card scanning feature lets you scan several cards at once, which is a major time-saver for large collections. Accuracy holds up well even when processing thousands of cards in a session.

The interface is clean and well-organized across all three platforms. Custom tagging for deck organization adds useful flexibility that many competitors lack. The web app is a genuine companion rather than a stripped-down afterthought, which adds real value for desktop users.

Price tracking covers the major marketplaces and updates regularly. Collection value totals are easy to find and reasonably accurate. It does not have the deepest price analytics, but it covers what most collectors need for day-to-day tracking.

This is where CardCastle truly shines. The app handles collections of 30,000 or more cards without noticeable slowdown, which is impressive for a mobile application. Custom tagging, flexible organization, and robust search make managing large inventories practical rather than painful.

The free tier provides enough functionality to evaluate the app properly before committing. The subscription pricing is competitive for the feature set, especially considering the cross-platform access. The CardBot hardware is an additional cost but fills a unique niche for high-volume users.