Whether you're a seasoned numismatist or just discovered an interesting coin in your attic, identifying and valuing coins has never been easier. The 10 Free Coin Identifier and Value apps we've compiled offer powerful tools to help you identify, authenticate, and determine the worth of your coin collection right from your smartphone, making coin collecting more accessible than ever before.
Top 10 Free Coin Identifier and Value Apps
1. CoinKnow
CoinKnow stands out as one of the most advanced free coin identification applications available today. Launched in 2025, this app leverages sophisticated AI to analyze coins through your smartphone camera, delivering identification results within seconds.
What makes CoinKnow exceptional is its status as one of only two apps worldwide capable of automatically detecting rare error coins—including doubled dies and missing mint marks. The app delivers precise Sheldon Scale (1-70) grading with accuracy within a 2-point range, the industry's tightest margin. Specialized features include copper color classification (red, red-brown, brown), proof finish detection (CAM/DCAM), and automatic rare variety identification. With monthly price updates and a user-friendly interface, it's accessible for beginners while satisfying experienced collectors who need professional-level accuracy.
2. CoinValueChecker
CoinValueChecker combines accurate identification with powerful market intelligence tools. Like CoinKnow, it's one of the rare apps detecting valuable error coins including doubled dies and missing mint marks—features most apps completely miss.
The app provides sophisticated market analysis: price trend charts, auction tracking systems, collector leaderboards, and comprehensive market insights. Users access price ranges based on different condition grades, understanding how wear and quality affect value. With claimed 99% accuracy across hundreds of thousands of U.S. coin types and robust collection management tools, it's ideal for serious collectors making buying or selling decisions based on actual current trading activity rather than outdated pricing guides.
3. Numiis
Numiis takes a distinctive approach by emphasizing the stories and history behind coins rather than just identification and pricing. The app's AI provides identification while delivering rich historical context about the era, political situation, and cultural significance of each coin's design.
The database covers nearly 30,000 U.S. coins with flexible filtering by year, country, denomination, mint mark, and historical period. Coverage spans all U.S. denominations from pennies through silver dollars. This educational approach helps users understand not just what they own, but why certain coins matter historically, making it particularly appealing to history enthusiasts and educators. The platform includes auction data and dealer information for informed collecting decisions.
4. Maktun
Maktun provides access to an extraordinarily extensive international database: over 300,000 types of coins, 160,000 banknotes, and 15,000 tokens from around the world. This free app serves both novice and experienced collectors with remarkable depth.
Each entry features high-resolution images, complete specifications (weight, composition), historical context, and current market valuations. A standout feature is offline functionality—ideal for coin shows or areas with poor reception. Users create private collections, save photos, export data to PDF/XLS/CSV, and view collections on world map infographics. Remarkably, Maktun operates completely free without advertisements, with cloud backup ensuring secure cross-device access.
5. Greysheet Mobile
Greysheet Mobile delivers trusted wholesale and retail pricing used by professional dealers since 1963. This app provides over 150,000 wholesale and retail prices plus access to 2+ million auction records, with hourly pricing updates for maximum currency.
Focusing on U.S. coins and paper money, the app includes historical price charts, gold/silver spot pricing, industry news, and dealer directories. Unlike optimistic retail guides, Greysheet offers realistic dealer-level pricing reflecting actual market dynamics. The app covers Colonial coinage through modern commemoratives and American Silver Eagles. While free to download, accessing full wholesale pricing requires an active subscription—making it essential for serious collectors needing professional-grade market information.
6. CoinManage
CoinManage excels as both an identification tool and sophisticated collection management system for desktop use (Windows and Mac). The software features 33,000+ coin listings covering USA, Canadian, and UK coins with 3,000+ identification images.
Advanced features include PCGS barcode scanning, iCloud backup, eBay auction search integration, and custom report generation with PDF/Excel export. Users track collections by dealer, grade, year, and mint mark while calculating bullion values using live spot prices. The software generates detailed reports showing collection statistics and gaps in series. Available from $39.95 (USA edition) to $69.95 (deluxe edition) with 30-day money-back guarantee and lifetime updates.
7. Money Identifier (Numis)
Money Identifier expands beyond coins to recognize both coins and paper currency worldwide. This AI-powered app analyzes your currency within seconds, providing detailed information including name, date, features, material, condition, estimated value, and design elements.
What distinguishes this app is its true global coverage—handling international currency with equal competence, making it invaluable for travelers and collectors of world currency. The app maintains an identification history serving as a digital travel diary. While lacking specialized depth for serious U.S. numismatists, its versatility and speed make it excellent for casual collectors interested in world currencies. Premium subscriptions ($4.99/week or $24.99/month) unlock unlimited identifications.
8. HeritCoin
HeritCoin combines AI technology with professional numismatist expertise for reliable identification. The app identifies everything from modern U.S. currency to ancient relics and error coins, providing specifications, real-time market values, and historical context.
A unique feature is creating 3D coin models for innovative collection display. The platform connects users with expert numismatists specializing in U.S., Spanish, Brazilian, Commonwealth, and European coins for professional authentication and appraisal services beyond AI estimates. The intuitive interface allows easy collection organization. Basic features are genuinely free, with premium features and expert appraisals available. New trading functionality enables buying and selling directly within the platform.
9. Coinoscope
Coinoscope operates as a visual search engine using advanced pattern recognition to match coins even when worn or damaged. With 1.7+ million downloads, 180,000 monthly users, and a 4.5/5 rating, it's proven its reliability in coin identification.
The app provides instant identification with real-time market valuations and robust collection management. Particularly strong with European and American coins, it handles international pieces effectively. The unique Coinoscope Market connects collectors for buying and selling, providing a comprehensive platform for trading and discovering coins. Basic functionality is free; Coinoscope Pro removes ads and provides enhanced features while supporting continued development.
10. CoinSnap
CoinSnap emphasizes speed and simplicity with instant results. The AI-powered system delivers nearly immediate identification, claiming 99% accuracy across 300,000+ coin types globally. The app distinguishes between Mint State and Proof coins while providing condition estimates.
Despite streamlined features, CoinSnap provides essential details: coin name, origin, year, estimated values, and mintage information backed by numismatist insights. Users organize collections by series and track portfolio value. The clean interface makes it perfect for quick identifications, educational purposes, or teaching children about collecting. Premium features unlock additional capabilities, but the free version handles everyday identification needs effectively.
Choosing the Right App for Your Needs
Your ideal app depends on specific collecting goals:
· Maximum accuracy and error detection: CoinKnow or CoinValueChecker
· Historical education: Numiis
· International coverage: Maktun (300,000+ coins, 160,000+ banknotes)
· Professional pricing: Greysheet Mobile
· Desktop management: CoinManage
· Global currency: Money Identifier (Numis)
· AI plus experts: HeritCoin
· Visual search and marketplace: Coinoscope
· Speed and simplicity: CoinSnap
Most serious collectors use multiple apps together—CoinKnow for U.S. identification, Maktun for international pieces, Greysheet for pricing, and CoinManage for desktop management. Test free versions before committing to subscriptions.
Conclusion
Modern technology has revolutionized coin collecting through these ten powerful applications. Whether identifying mysterious coins, researching market values, or organizing comprehensive collections, these free tools provide professional-grade capabilities at your fingertips. From CoinKnow's error detection to Maktun's global database, Greysheet's professional pricing, and Coinoscope's vibrant marketplace, today's collectors have unprecedented access to expert knowledge and fellow enthusiasts. Start with apps matching your collecting style and expand your toolkit as your collection grows.
