Precious Coin Tester 4+

Test your gold or silver coin

AUGer kit

Designed for iPhone

    • 4.4 • 312 Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots


When you get a silver or gold coin with correct weight and size, how can you know it is not a fake coin made of other cheap materials? Traditional ping tests can distinguish true gold or silver coins from counterfeit ones in cheap metal. But you need good ears. Precious coin tester helps you listen to the sound generated by the ping test and will tell you whether the coin is authentic or fake*. So no more worry about the fake gold or silver coin!

You can choose your coin from a catalog including more than 30,000 coins, where more than 100 of them are free. Nothing found in the catalog? Defining coin's parameters by your own is also another option!

- How to ping the coin?
Hold the coin on the tip of one finger near the mic of your phone/tablet, and knock the coin rapidely with another hard object. Hold still the coin while it rings. When the sound of coin has diminished, knock it again.
Tutorial video:

- Which results are good?
2~3 stars are considered as good results. Otherwise, you should be cautious.

- Want more details?
Please visit

Your suggestions and comments are highly welcome!

Best regards,

*The result is only for informational propose, all decisions made based on this information are at users' own risks.

What’s New

Version 1.4.3

[Important] We've added coins issued in 2023.
[Important] Fixed misplacement of Czech Republic coins.
[Normal] Added "3-star" and "verified" markers to more coins.

Ratings and Reviews

4.4 out of 5
312 Ratings

312 Ratings

ytreguyo ,

Ping test

I really am grateful for the service you provide. The only suggestion I have is that you guys supply a table of contents for coins categorized by region. I have some Britannia’s and cannot find them on here at all. I type In Britannia in key word search but nothing. Maybe provide a key Or table of key words, I e run into this with other popular coins that are silver and because I’m not using the correct key words which aren’t provided I end up using manual dimensions which usually come back 2 out of 3. These happen with Niue coins 999 silver too, what’s the key word? Also app needs updated to 2023 it still doesn’t go past 2021. But other than that I love this service you provide thank you sooo much you offer peace of mind. Thank you.

Worksagood ,

Works great but the monthly subscription

I use it with the pocket pinger and works fantastic. But paying a monthly subscription for something you use a few times a month and maybe none the next. I understand you need to make money but I think you would make more if you had a low volume user fee. A one time $9.99 fee for low volume users. I am sure you would make a lot more money a lot of us are tired of subscription apps. it really starts to add up. Do you even read the comments I see no replies. Some money is better than none. Would be 5 star without subscription.

Paula Eve ,

A must have for serious stackers.

Comparing results between specific gravity test, a Sigma Metalytics PMV we own and this Ping testing AP it’s been spot on as are the above two that we depend on to make sure no fakes exist in our stack.
For fast accurate detection on the fly we have come to depend on the Coin Tester AP.
We’ve subscribed to it and are willing to accept the results without question.
It’s well worth the cost and piece of mind. So if your on the fence about using this AP and or subscribing go for it. It’ll save you a lot of grief and pay for itself.

App Privacy

The developer, AUGer kit, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • User Content
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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