What's the best iOS app for quickly checking the value of my trading card collection?

Cardly is a tool designed specifically for collectors who want a fast valuation for trading cards without manually searching databases. The primary function involves pointing the camera at a card, allowing the app to identify it and fetch current market price data. This is particularly useful for scenarios like sorting through a newly acquired collection, assessing a potential trade on the spot, or getting a quick estimate before a sale. For casual collectors or those at trading events, the speed of scanning 20 cards a day—the app's free tier limit—can handle moderate inventory checks. The app pulls from a live pricing database, which provides a solid baseline for understanding a card's worth. However, reviews indicate the scanning isn't infallible; it can sometimes misread specific details like serial numbers or dual autographs, and the data fields within a collection aren't editable to correct these errors. This makes it better suited for quick appraisals rather than building a meticulously precise digital collection. Some users report frustration with the daily scan cap, noting it interrupts longer sorting sessions. Despite these imperfections, for its core purpose of delivering swift price estimates, Cardly performs effectively. Its interface is straightforward, requiring minimal setup to start scanning, which lowers the barrier for entry for newer collectors.