3 FREE SCANS — No Credit Card Required

Is Your Pocket Change Worth Thousands?

Upload a photo of any coin or bill. ErrorHunter's AI instantly detects doubled dies, off-center strikes, die cracks, and 30+ minting errors — then tells you what it's worth.

Scan Your First Coin Free

Trusted by collectors in 170+ countries

How It Works

Three steps to find hidden value in your collection

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Snap a Photo

Take a clear photo of your coin or bill directly in the app, or upload from your gallery.

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AI Analyzes

Our multi-engine AI scans for all known minting and printing errors in seconds.

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Know Its Value

Get instant error identification, rarity rating, estimated market value, and grading guidance.

See It In Action

Upload a photo and get detailed AI analysis instantly

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Your Coin Photo

Snap both sides for best results

AI RESULT

Doubled Die Obverse

92% Confidence

Clear doubling detected on date and "IN GOD WE TRUST" lettering. Consistent with known DDO variety.

Rarity
Scarce

Est. Value
$150 – $300

Grade
MS-63

Worth Professional Grading

Try It Free — Scan Your Coin

What We Detect

Our AI recognizes 30+ error types across coins and paper currency

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Doubled Die

Obverse & reverse doubling

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Off-Center Strike

Misaligned die impressions

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Die Cracks & Cuds

Raised lines and rim breaks

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Wrong Planchet

Struck on wrong metal blank

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Rotated Die

Misaligned obverse/reverse

✂️

Clipped Planchet

Missing edge material

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Miscut Notes

Improperly cut paper money

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Offset Printing

Misaligned currency printing

Industry First

The Only Coin Scanner with
Built-In Weight Verification

When our AI detects a potential wrong planchet or transitional error, we surface a Weight Verification Tool right inside your results — compare against official mint specs, test metal density, and get authentication guidance.

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Weight Check

Compare against official mint tolerances

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Metal Density

Specific gravity analysis for composition

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Auth Guidance

PCGS/NGC recommendation included

Try It Free

Simple, Affordable Pricing

Start with 3 free scans. Upgrade when you're ready.

Day Pass

$0.99

24-hour access

Unlimited scans for 24h
All error types
Value estimates

Get Started

Monthly

$9.99

per month

Unlimited scans
Live camera scanning
PDF reports
Priority AI analysis

Lifetime

$49.99

one-time payment

Everything in Monthly
Never pay again
All future updates
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Buy Lifetime

What Hunters Are Saying

Collectors around the world trust ErrorHunter

"I've been collecting UK Sovereigns for twenty years. ErrorHunt's live scan found a double-die strike in seconds that I would have missed with a loupe."

Alistair W.

London, UK

"Used the $0.99 daily plan on a stack of older Pesos. Found three clipped planchet errors I would have missed. This site paid for itself in one day."

Mateo R.

Mexico City, MX

"Finally, a site for global currency. Most tools only care about US quarters. ErrorHunt actually recognizes my Japanese Yen errors. A game changer."

Hiroshi T.

Tokyo, JP

"I'm a coin roll hunter and this saves me hours. Instead of examining every coin by hand, I snap photos and let the AI work. Found a 1972 DDO penny worth $500+."

Jason M.

Dallas, USA

"Ran a batch of Canadian Toonies through the scanner and it flagged a minor rotation error that three other experts missed. Best error detection site, hands down."

Sarah K.

Toronto, CA

"Real-time results are legit. I deal in high-volume trade and speed is everything. ErrorHunt gives me instant error detection so I can buy with confidence at auctions."

Marcus S.

Sydney, AU

Frequently Asked Questions

Everything you need to know before your first scan

How accurate is the AI detection?

Our multi-engine AI system combines local machine learning, the Ximilar Collectibles API, and GPT-4o Vision analysis to achieve 99.9% accuracy across 30+ known error types. Each scan runs through multiple detection engines for maximum reliability.

What types of coins and currency can I scan?

ErrorHunter works with coins and paper currency from 170+ countries, including US, UK, Canadian, Australian, Japanese, Mexican, Euro, and many more. Our dataset covers both modern and historical coinage.

Do I really get 3 free scans?

Yes. Every new user gets 3 completely free scans with full AI analysis, error detection, and value estimates. No credit card required. After your free scans, you can upgrade starting at just $0.99 for a full day of unlimited scanning.

What's included in the value estimates?

Each scan provides the error type identification, a confidence score, rarity rating, estimated market value range, and whether the coin is worth professional grading through PCGS or NGC. Premium members also get downloadable PDF reports.

Can I use this on my phone?

Absolutely. ErrorHunter works in any modern web browser on phones, tablets, and desktops. You can also install it as a Progressive Web App for offline access. Premium members get access to Live Scan with real-time camera detection.

Is the Lifetime plan really one-time?

Yes. The $49.99 Lifetime plan is a single payment that gives you permanent access to all current and future features. No recurring charges, no hidden fees. It's our best deal for serious collectors.