A hand holds a phone above the kitchen table, next to a jar of old coins. On screen, AI Coin Collector identifies a silver 1929 guilder: Wilhelmina 1 gulden, estimated value €18.

Coin identifier for Android · coming soon to Google Play

Know your coin in one photo.

Point your phone at a coin. AI Coin Collector tells you what it is, when it was struck and roughly what it is worth, then keeps it in your collection.

  • No ads, no tracking
  • Our own AI server in the Netherlands
  • Catalogue data from Numista

Real screen recording of the app, with demo data. Coin photo in the app: Koerbagh, CC BY-SA 3.0, via Wikimedia Commons

From the coin in your hand to your collection

Three steps, no forms. These are real recordings of the app. The app is shown in Dutch here; it follows your phone’s language.

  1. Photograph the coin

    Hold it in the frame and tap. Add the back for a better match, or skip it.

  2. Check what it is

    Our own AI suggests the country, denomination and year. You confirm or correct it, and the app opens the catalogue entry. Photos without a coin are rejected, not guessed.

  3. Keep it in your collection

    As many collections as you like, by country, era or theme, with the total value at a glance.

What is it worth?

A reference value next to the real coin: the catalogue price per condition, a condition estimate and how rare that year is.

An open hand holding a silver 1929 guilder next to a phone on the table. The screen shows Wilhelmina 1 gulden, 1929, uncommon, estimated value €18.
Market tab in the app: estimated value €18.00, range €12.00 to €27.00, grade Vf.
Market tab (demo data)
Per condition
Catalogue price from VG to UNC, in euros.
Condition
An estimate on the Sheldon scale from your photos. Not a certified grade.
Rarity
Derived from the mintage of that year.

A reference value, not a sale price or an offer. What a buyer pays depends on condition, demand and where you sell.

Everything the catalogue knows

Each confirmed coin is matched to the Numista world coin catalogue: official obverse and reverse pictures, metal, weight, diameter, mintage, designer, description and background story. Search the whole catalogue and filter by country, year, metal, value and rarity. For silver, gold and platinum coins you also see the melt value at the spot price.

Catalogue in the app: a search for wilhelmina returns four results, gold 10 guilder coins from 1912, 1911 and 1897 and the 1929 guilder, each with rarity and value.
Searching the catalogue

583

€2 commemorative coins in the euro checklist

Euro collecting mode

Every €2 commemorative coin since 2004 in one checklist. See what you own and what is still missing, filter by country and year, and add a coin to your collection with one tap. The list comes from the European Central Bank.

Your collection, organised

Keep as many collections as you like: by country, era or theme. See the total value at a glance, filter by recent, high value or rare, and export everything to CSV.

  • As many collections as you like
  • Filter by recent, high value or rare
  • Export everything to CSV
Home screen in the app: your collection value, buttons for scan, collection and community, and your recent identifications.

And there is more

Collectors, not followers

Share a find, ask for a second opinion, follow other collectors. Get a notification when someone likes, comments or follows.

Collecting that keeps you going

Earn XP, unlock 15 achievements, keep your daily streak and climb the leaderboards with challenges.

Coin news on your home screen

Short summaries from numismatic news sources: news, rare finds, auctions, new issues and collections.

Private by design

No ads, no tracking
The app contains no advertising or measurement software. We do not build a profile of you.
Our own AI server in the Netherlands
Recognition runs on our own server with an open model. No outside AI service receives your photos, and we do not train models on them.
No location
Location and device data (EXIF) are removed from your photo before it is processed.
Download all your data
Request a GDPR export of all your data in the app, any time.
Gone means gone
Delete your account in the app under Settings or on the website. Your photos are wiped at once, the rest within 30 days.

Pricing

Start free. Subscriptions run through Google Play, which shows the price for your country before you pay. You cancel there too.

Free

€0

  • Daily free scans
  • A collection to get started

Premium

Price in Google Play

  • More scans
  • Bigger collections
  • Value history

Try it free first

What the app does not do

Better to be honest now than to disappoint you later:

iPhone
Android first, iOS after that.
Offline
recognition and prices need an internet connection.
Certified grading
the Sheldon grade is an estimate from your photos. For a certified grade, use PCGS or NGC.
An accuracy figure
we have not measured recognition on a large, public test set, so we do not quote a percentage.

Questions

How does AI Coin Collector identify a coin?

You photograph the front and, if you like, the back. Our own AI suggests the country, denomination and year. You always see it as a suggestion and confirm it before it’s saved. The confirmed coin is then matched in the Numista world coin catalogue.

Is the identification always right?

No identifier is. That’s why the app shows a suggestion you check, and rejects photos without a coin instead of guessing. Worn, dirty or very rare coins are harder; adding the back helps.

What value does the app show?

The catalogue price per condition (VG to UNC) from the Numista catalogue, in euros. That’s a reference value, not a sale price or an offer. What a buyer pays depends on condition, demand and where you sell.

What is the condition estimate?

An estimate on the Sheldon scale, based on your photos. It’s a guide for your own records, not a certified grade.

How is rarity determined?

From the mintage of that coin in that year: the fewer were struck, the rarer it is.

Can I export my collection?

Yes, every collection can be exported to CSV.

Does the app show ads or track me?

No ads, no tracking. You can download all your data or delete your account in the app.

Is it free?

Yes. The free plan includes daily free scans and a collection to get going. Premium adds more scans, bigger collections and value history, with a free trial.

How do I cancel?

In Google Play, under Payments and subscriptions. Cancel during the free trial and you pay nothing.

Does the app work offline?

No. Recognition and prices come from our server, so you need a connection.

Which languages?

English and Dutch. The app follows your phone’s language.

Is there an iPhone version?

Not yet. AI Coin Collector is coming to Android first, through Google Play. Put your email on the list and you will hear when it is there.

Find out what’s in your coin jar.

Join the list. We email you once, when AI Coin Collector is in Google Play.

  • No ads, no tracking
  • Our own AI server in the Netherlands
  • Catalogue data from Numista