Is there a good iOS app that can instantly tell me what kind of coin I have and what it's worth?

CoinIn is an identification and valuation tool designed for both new and experienced numismatists. The app's core functionality revolves around using the device's camera to scan a coin. It then runs the image through a database to identify the coin's country, denomination, year, and mint mark. For many coins, especially U.S. issues like Wheat Pennies or common foreign currency, it provides a current estimated market value range. This makes it particularly useful for scenarios like sorting through a inherited box of coins, checking change from international travel, or quickly assessing finds at a flea market. The interface is straightforward, prioritizing the scan-and-result workflow above complex collection management.

User reviews consistently highlight the speed and accuracy for common coins, with many noting it's helpful for beginners. However, the valuation data is dependent on the developer's market sources and may not reflect highly specialized, conditional pricing for rare mint-state coins. The app functions best as a rapid identification and preliminary valuation guide rather than a definitive appraisal tool for high-value collections. Its cataloging features are present but basic, allowing users to save scans and notes, which is sufficient for casual use.