Coin identifier
Identify a coin from a photo
Take a photo of both sides. Keepmint suggests the coin, the year on it, the metal and the edge, and shows how confident it is. You check the result and save it.
More about the coin identifierCoin identifier & collection log for iPhone
Identify your coins. Never forget what you paid.
Snap both sides of a coin, get its details, and keep every price paid, date and storage spot in one place on your iPhone.
- No account needed
- Stays on your iPhone
- Export to CSV
How it works
From a loose coin to a logged collection
Keepmint does three jobs: tells you what the coin is, remembers what you paid, and shows what your collection adds up to.
Collection tracker
Never forget what you paid
Every coin keeps its price paid, purchase date, where you bought it, condition and where it is stored, like "Album 2, page 4". Front and back photos included.
More about the collection tracker
Value checker
See your collection add up
Your collection screen shows the estimated value next to what you paid and the difference, with folders like "For trade" to keep things organized.
More about the value checkerPrivate by design
Made for collectors who like to keep things tidy
No account needed
Open the app and start. We never ask for your name, e-mail or phone number.
Your collection stays on your iPhone
Your coins, notes and photos are stored on your device, not on our servers.
Export to CSV anytime
Take your whole collection to a spreadsheet whenever you want. It is your data.
Front and back photos
Keep a clear photo of each side, so you can compare coins without opening the album.
Folders and storage spots
Group coins by country, series or "For trade", and record exactly where each one lives.
US and world coins
Built for real collections that mix US coins, world coins, old silver and modern commemoratives.
Built by a collector
Real coins, real collection
Keepmint was created by a coin collector who wanted one place to record what each coin is, what it cost and where it is kept. The coins you see on this site come from the founder's own collection.
About KeepmintFrequently asked questions
What is Keepmint?
Keepmint is an iPhone app for coin collectors. It identifies a coin from photos of both sides and keeps a log of your collection with photos, price paid, purchase date, estimated value and where each coin is stored.
Is Keepmint free?
Keepmint is free to download and includes a free plan with a monthly number of AI identifications. The paid Expert plan adds more identifications and the AI value estimate. Prices are shown in the app before you buy.
Do I need an account?
No. There are no user accounts. Your collection, notes and photos stay on your iPhone, and you can export them to CSV at any time.
What happens to the photos I send for identification?
When you ask for an identification, the front and back photos are sent over an encrypted connection to our server, which passes them to our AI provider, Anthropic, for analysis. The result comes back to your iPhone and is saved there with the coin. Our server does not keep the photos or the result. Details are in our Privacy Policy.
Are the values in the app appraisals?
No. Identifications and values are estimates to help you organize your hobby. For valuable coins, check recent sales and consider a professional grading service before buying, selling or insuring.
When will Keepmint be available?
Keepmint is coming soon to the App Store for iPhone. Follow @keepmintapp on social media to hear when it launches.