Honest confidence
Every identification shows its real confidence score. When we're 92 % sure, you'll see 92 % — and the other candidates too. If we got it wrong, correct it with two taps.
The honest coin identifier
Know what's in your hand.
Snap both sides of any coin. CoinSage tells you what it is, where it comes from and what it's honestly worth — with a confidence score we never hide.
◉ Coming soon to the App Store
Value estimates are based on recent sales — not a professional appraisal. We'd rather tell you that upfront.
Why CoinSage
Built on the one thing coin apps forgot: trust.
Estimates, not fairy tales
Values come as a realistic range from worn to mint state, marked as an estimate — never an inflated number designed to make you subscribe.
Fair billing, always
The free trial reminds you before it converts. Collection tools stay free forever. No weekly subscriptions, no tricks, cancel anytime.
How it works
From pocket change to catalogued collection in three steps.
Snap
Photograph both sides of the coin. A guided frame and your photo library make it effortless.
Identify
Our AI compares the details and returns the best match with an honest confidence score and alternatives.
Collect
Save it to albums, track your collection's value and build your wishlist — free, forever, on your device.
What's inside
A pocket numismatist, minus the jargon.
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Two-sided identification
Obverse and reverse are analyzed together — from Morgan dollars to euro commemoratives.
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Value by condition
See what your coin is worth from worn to mint state, with the condition assumption spelled out.
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Albums & totals
Organize coins into albums and watch your collection's estimated value grow.
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Manual correction
Disagree with a match? Pick the right coin from the catalog — your correction improves future results.
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Wishlist
Keep a list of the coins you're hunting for — handy at flea markets and coin fairs.
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Private by design
Your collection lives on your device. Scan photos are processed, then discarded — not hoarded.
Pricing
Free to collect. Fair to upgrade.
Free
$0
forever
- 3 coin scans per day
- Full collection tools — albums, values, wishlist
- Catalog browsing & manual correction
Collection features are never paywalled. Promise.
Premium
$29.99 / year
or $4.99 / month · 7-day free trial on yearly
- Unlimited scans
- Detailed value estimates & price context
- Everything in Free, of course
We send you a reminder before your trial converts. Cancel in one tap from the App Store.
All value information in CoinSage is an estimate based on recent sales data — not a professional appraisal. For insurance or sale, consult a certified numismatist.
Questions
Fair questions, straight answers.
How accurate is the identification?
Good photos of common coins identify with high confidence; rare variants and worn coins are harder. That's exactly why every result shows its confidence score and alternative candidates instead of pretending to be certain. And if we miss, you can correct the result manually.
What happens to my coin photos?
They're sent securely to our server, analyzed to identify the coin, and then discarded. They are never used to train AI models unless you explicitly opt in. Details in our privacy policy.
Is my collection private?
Yes. Your collection is stored on your device — we run no accounts and no cloud database of your coins. We literally cannot see what you own.
Do I need to subscribe?
No. Scanning is free (3 per day) and every collection feature is free forever. Premium adds unlimited scans and detailed value estimates — $29.99/year with a 7-day trial or $4.99/month, cancelled anytime in your App Store settings. We notify you before a trial converts.