CoinKnow stands out as one of the most advanced free coin identification applications available today. Launched in 2025, this app leverages sophisticated AI to analyze coins through your smartphone ...

This guide breaks down the best free coin identifier apps for U.S. and international coins, accuracy, error detection, and who each app is really for.

Coin grading is the process by which a certified numismatist determines the grade, or physical condition, of an existing coin. Once the grade is determined, the value of the coin can then be ...

Knowing how much your coins are worth is important for coin collectors and anyone with old coins they want to sell or find the value of. There are many great websites that allow you to look up coin ...

GRAND RAPIDS, MI - A Grand Rapids-based inventor has developed a first-of-its-kind device designed to transform how collectors grade and value their coins. The OCS200, created by Richard Colonna of ...