About
Numiis is a one-stop numismatic platform built for coin collectors, investors, and dealers who need reliable data on coins, medals, and currency notes from around the world. The platform provides a living, continuously updated database covering minting details, historical context, valuation data, and price trend tracking for U.S. and international coins. At the core of the platform is a powerful coin search engine that surfaces detailed records for rare and common coins alike — from Morgan Dollars and Peace Dollars to Saint-Gaudens Double Eagles and Buffalo Nickels. Users can track values over time, monitor auction results, and find coin and currency dealers nearby. Numiis also offers an AI-powered Coin Identifier app available on iOS and Android. Users can photograph an unknown coin and receive an accurate identification, grade estimate, and current market value — making it a valuable tool for both seasoned numismatists and casual collectors. Subscription tiers cater to different needs: the Basic Plan covers U.S. coins minted 1965 or later, while the Premium Plan unlocks the full historical database including pre-1965 and rare coinage. Whether you're buying, selling, or simply researching, Numiis aims to give you the intelligence to make informed numismatic decisions.
Key Features
- Comprehensive Coin Database: Search a living database covering coins, medals, and currency notes worldwide, including minting details, historical context, and rarity data.
- AI Coin Identifier App: Upload a photo of any coin to get an AI-powered identification, grade estimate, and current market value via the iOS and Android mobile app.
- Price Trend Tracking: Monitor real-time and historical price trends for U.S. coins to make informed buying and selling decisions.
- Auction & Dealer Directory: Access upcoming coin auctions and locate verified coin and currency dealers near you or online.
- Tiered Subscription Plans: Choose between a Basic Plan for modern U.S. coins (post-1965) or a Premium Plan for the full historical coin catalog dating back centuries.
Use Cases
- A coin collector photographs an unknown coin at a flea market and uses the Numiis mobile app to instantly identify it, check its grade, and determine fair market value before purchasing.
- A dealer uses Numiis to track price trends on Morgan Dollars and Peace Dollars to time their inventory buying and selling for maximum margin.
- A hobbyist numismatist builds a tracked watchlist of their coin collection to monitor portfolio value changes over time using the Premium subscription.
- A student researching American monetary history uses Numiis to explore the historical background, mintage figures, and design details of iconic coins like the Saint-Gaudens Double Eagle.
- An estate appraiser quickly looks up coin values and recent auction results on Numiis to provide accurate assessments of a deceased collector's holdings.
Pros
- AI-Powered Coin Identification: The photo-based coin identifier removes guesswork for collectors at all experience levels, providing instant ID, grade, and value estimates.
- All-in-One Numismatic Resource: Combines valuations, historical data, auction listings, and dealer info in a single platform, reducing the need for multiple reference sources.
- Affordable Entry Price: The Basic Plan starts at under $2/month, making professional-grade coin data accessible to hobbyist collectors on a budget.
- Mobile App Availability: iOS and Android apps let collectors identify and value coins on the go — useful at coin shows, estate sales, or flea markets.
Cons
- Premium Plan Required for Full History: Pre-1965 and historically significant coins are locked behind the Premium tier, limiting free and Basic users to modern coinage.
- U.S.-Centric Focus: While the database covers international coins, the depth of data and trending features appear to center heavily on U.S. coinage.
- Subscription Required for Tracking: Unlimited price trend tracking and advanced insights require a paid plan, which may not suit casual or one-time researchers.
Frequently Asked Questions
What is Numiis?
Numiis is an online numismatic database and mobile app that provides coin collectors, investors, and dealers with coin values, mintage data, price trends, auction listings, and an AI-powered coin identifier.
How does the AI coin identifier work?
The Coin Identifier app uses computer vision to analyze a photo of your coin. It returns the most likely coin identification along with an estimated grade and current market value.
What is the difference between the Basic and Premium plans?
The Basic Plan provides values and price trend tracking for U.S. coins minted in 1965 or later. The Premium Plan covers all U.S. coins from any year, including rare and historical pieces.
Is there a free version of Numiis?
Yes, Numiis allows basic searching of its coin database for free. Paid subscriptions unlock unlimited tracking, full historical data, and deeper price intelligence.
Does Numiis cover international coins?
Yes, the database includes information on coins, medals, and notes from currencies around the world, though the deepest feature set is focused on U.S. coinage.
