All About Coins
Coin identification, valuation, and collecting reference.
Popular Guides
Coin Value Checker
How to determine what your coin is worth — methods, grading, and resources.
Coin Identifier by Photo
How AI coin recognition works and how to use it for identification.
Old Coin Identifier
A guide to identifying antique and vintage coins by photo and reference.
Free Coin Identifier
Free options to identify coins online — what works and what doesn’t.
Rare Coins Worth Money
15 rare US coins you might have at home — photos, mint marks, and values.
Best Coin Identifier Apps
2026 comparison: 10 apps tested and ranked for accuracy and features.
Latest from the Blog
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PCGS Photograde vs NGC Coin Explorer: Reference Guides Compared
PCGS Photograde is best for grading your own coins. NGC Coin Explorer is best for variety and mintage research. Serious collectors keep both guides open.
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How to Spot a Real 1909-S VDB Lincoln Cent vs Common Counterfeits
A genuine 1909-S VDB Lincoln cent has a small serif S with a raised dot inside its top curve. Most fakes are added-mintmark jobs on common 1909 cents.
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How to Use PC59 Cataloging for Canadian 1859 Cent Varieties
PC59 cataloging numbers each 1859 Canadian cent by its die pair. The system spans PC59-1 to PC59-248. Haxby built it from die markers.
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Coinara vs CoinSnap vs Coinoscope: which wins for identification
Coinara is the most accurate coin identifier app for iPhone in 2026. It beats CoinSnap and Coinoscope on value accuracy and ancient coin coverage.
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Russian Ruble Imperial to Soviet: Year-by-Year Identification
Russian ruble identification starts with the date and mint mark. Imperial coins name the tsar; Soviet rubles show the hammer and sickle.
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Heritcoin App vs Coinara vs CoinSnap: 2026 Coin Identifier Comparison
The best coin identifier app depends on what you collect. Coinara leads on US variety detection, CoinSnap on world coins, Heritcoin on collection display.
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15 Tipped Coins Worth Hundreds: Coffee Shop, Bar and Cashier Finds
Tipped coins worth hundreds show up in coffee shops, bars, and cash drawers regularly. Always check the date, mint mark, and silver ring.
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16 Most Valuable Australian Kookaburra Variants for Collectors
The most valuable Australian Kookaburra coins are early Perth Mint dates and privy-mark editions. Mintage, size, and grade decide every premium.
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How Accurate Are Coin Identifier Apps on iPhone? Real Test Results
Coin identifier apps on iPhone reach 90 to 95 percent accuracy on common circulation coins. Rare varieties and heavily worn pieces still fool them.
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20 Most Valuable Lincoln Cents Ever Sold at Auction
The most valuable Lincoln cent ever sold is the unique 1943-D bronze cent at $1.7 million. Rare mint errors and key dates drive these record auction prices.