Metal Finder: Coin Identifier enters a niche market of utility applications targeting numismatists and metal detection enthusiasts. Unlike general camera tools, this application focuses specifically on coin identification through multiple detection methods, positioning itself as a specialized companion for field use and collection management. The core functionality revolves around two primary identification methods: camera-based visual recognition and magnetic field detection. Users can photograph coins against neutral backgrounds for automatic denomination and origin identification, while the magnetic sensor helps determine metallic composition—particularly useful for distinguishing ferrous from non-ferrous coins. The application maintains an offline database of common international currencies, though connectivity improves results for obscure or historical coins. Additional tools include a magnifier overlay for detail examination and a manual entry option for cataloging unidentifiable specimens. Real-world usage demonstrates practical value during coin sorting sessions, flea market visits, or metal detecting excursions. The interface remains straightforward with large capture buttons and minimal menu navigation, though lighting conditions significantly impact visual recognition accuracy. Field tests show the magnetic detection provides consistent results for modern circulation coins, while older or corroded specimens sometimes require multiple attempts. The app performs adequately on mid-range devices, though older smartphones may experience slower processing times during image analysis. Early user reports highlight successful identifications of common European and North American coins, with particular praise for the magnetic detection's reliability. Some feedback notes occasional misidentifications with worn-edged coins or similar-looking foreign currency. The offline functionality receives positive comments from users in areas with poor connectivity, though the database size appears somewhat limited compared to web-connected alternatives. Several collectors mention using the app alongside traditional reference books for verification. Overall, Metal Finder delivers competent performance within its specialized scope. The dual detection approach provides reasonable accuracy for most common identification scenarios, though it struggles with damaged or exceptionally rare specimens. The absence of social features or collection tracking might limit appeal for serious numismatists, but as a quick-reference tool, it serves its purpose effectively. The application's value increases when used as intended—for preliminary identification rather than definitive authentication.