CoinKnow is an AI-powered coin identifier app focused exclusively on U.S. coinage. It returns identification, Sheldon Scale grading, and coin value from a single photo.

TL;DR: Both are AI-powered coin identifier apps available on iOS and Android. CoinKnow (by SenseWake Limited) leads on U.S.

The 1913 Liberty Head Nickel might be the most famous rare coin in America. Only five examples exist and they’ve sold for ...

These three rare pennies from over 20 years ago are now worth a fortune—find out which coins skyrocketed in value and why ...

You may want to check your coins twice before spending — one of them could be worth $2.3 million. While most pennies are ...

While most quarters are worth exactly 25 cents, a rare error of this quarter has fetched five figures at auction.

Discover 10 valuable coins from the 1960s that have soared far beyond their original face value, revealing surprising ...

A mistake during the minting process led to one of the most recognizable coin errors ever. The die was impressed twice at ...

Carson City Seated dollars are among the rarest in U.S. coinage, with low mintages and even lower survival rates making them ...

In 2026, Nigeria is navigating an economic landscape that has placed many citizens under significant financial strain, with ...

Early U.S. gold rarities, an 1879 Flowing Hair Stella and S.S. Central America ingots power strong results in March 26-28 ...

A new analysis reveals which grocery items got more expensive and which got cheaper over the last two years, impacting your ...