This app helps you verify the authenticity of one-ounce gold and silver coins using acoustic resonance and artificial intelligence. It analyzes the unique sound a coin makes when struck to detect counterfeits. Regular updates ensure accuracy for various coin types and conditions.
Reviews of Coin Tester. are mixed: the Utilities app is rated 4.4/5 from 123 App Store ratings. What users like most: intuitive and easy to use, accurate coin authenticity verification. Top complaints: app requires payment for features, no mention of paid access upfront. Summarized from real user reviews.
2.1.8
August 11, 2026
Updated underlying libraries. Minor bug fixes.
Renewable Subscription
3 issues
Test results are not accurate
App fails to identify genuine coins
3 requests
Expand coin database
Improve accuracy of tests
The Coin Tester app is designed to help users verify the authenticity of one-ounce gold and silver coins. It utilizes a method called acoustic resonance, or the ping test, combined with artificial intelligence to analyze the unique sound a coin produces when struck, distinguishing genuine coins from counterfeits.
The app works by analyzing the sound a coin emits when struck. This sound is influenced by the coin's dimensions and material. Artificial intelligence processes these sound differences, comparing them against a large database of genuine coin sounds to identify potential counterfeits.
The application currently supports a list of popular one-ounce gold coins, including Britannia, American Eagle, Vienna Philharmonic, Australian Kangaroo, Krugerrand, Canadian Maple Leaf, American Bison, and Australian Emu. It also supports a similar list of one-ounce silver coins.
Access to coin verification features is provided through subscriptions. Users can choose from weekly, monthly, or annual subscription plans to use the application's services.
While the description does not explicitly state compatibility, mobile applications like Coin Tester are typically designed for iOS and Android smartphones and tablets. Users should check their respective app stores for specific device compatibility.
