Top 5 Coin Ping Test Apps for Gold & Silver (2025): Reviews of BullionTest, Coin Tester & More
Coin ping testing for gold coins and silver coins has become increasingly popular in recent years. This method is very attractive compared to other test methods thanks to its simplicity and causing little to no damage to coins. In this article, we compare 5 publicly available coin ping test apps, and you can surely find the most suitable one for your use case.
We discuss the different apps according to their order of appearance in the market, from earliest to latest. Different aspects of the apps are compared, such as the number of coins available, result interpretation, precision and pricing.
1. BullionTest: The Veteran Analyzer
Released on Apr 7, 2013, BullionTest is undoubtedly the very first app that provides ping test analysis for both gold and silver coins. It is available on Android devices and offers tests for 15 silver coins and 13 gold coins, including a generic solution for 1oz pure silver coins. The last update was on Aug 23, 2023.
Result interpretation
It displays "Match" or not as results, depending on whether the sound matches the database. As mentioned in the app's description: "There are no guarantees whatsoever regarding the function and accuracy of this app. There are many factors which could cause this app to report false positive or false negative results. This app should only be used to complement other testing methods, not replace them."
Pricing
The price is very affordable at $3.49. It also offers a free version, Bullion Test Demo, where only the Silver Eagle is free to test.
2. Pingcoin: Totally Free App
Pingcoin was released on Nov 2, 2018, on Google Play. It offers tests for 23 silver coins and 14 gold coins. Many popular coins can be found in the app, such as Gold Eagle, Buffalo, Maple Leaf, Philharmonic, etc. The last update was on Jul 25, 2023.
Result interpretation
It displays "Authentic XXX Detected" or "Not recognized" as results depending on whether the sound matches the database. The description of the app says: "If your coin's frequencies fall within the thresholds, it will almost certainly be genuine!"
Pricing
The Pingcoin app is completely free to download and use.
3. Precious Coin Tester: Huge Database and High Precision
Precious Coin Tester was first released in the App Store on Jul 30, 2019, and in Google Play later on Oct 25, 2019. It has a catalog with more than 40,000 coins worldwide and is updated every year. It also offers a generic solution for any gold coin and silver coin.
Result interpretation
It returns 3 stars as result:
- 2-star: Sound matches that of a genuine coin (similar to other apps).
- 3-star: In addition to matching the sound, the estimated purity deviation is less than 10% for silver coins and less than 5% for gold coins.
The upcoming Expert Plan will also allow users to obtain direct purity values, reportedly backed by a $5,000 purchase fund, highlighting the claimed reliability of the test results.
Pricing
Three pricing tiers are available:
- Free: 639 coins
- Basic: $2.99 / month (full database and generic model)
- Expert: $299 / year for the expert mode
4. Coin Tester: Great UI design
Coin Tester was released on Oct 13, 2023, and it is available in both Android and iOS versions. It features a notable UI design in the ping test app world. It offers tests for 1-ounce coins, including 8 gold coins and 7 silver coins. It claims to be "the first application that uses artificial intelligence" and "the only application of this type on the market that is regularly updated" on its website.
Result interpretation
Results are based on a sound similarity measurement. According to the website: "The coin is considered authentic when the sound similarity is above 90%."
Pricing
The app is free to download but requires a subscription (10 euros/month or 79 euros/year) to perform tests. No free tier is available.
5. StackerTool: Pocket Pinger Suite
StackerTool is developed by Sound Money Metals, also the owner of the Pocket Pinger tool. The StackerTool app includes a webpage-based version. Its iOS version was first released in February 2025 on the App Store, and the Android version is still under beta test. It offers tests for 6 gold coins and 15 silver coins. Beyond that, it provides a generic solution for 1-ounce silver coins and 1-ounce silver bars. The StackerTool app also offers diameter and thickness measurement, allowing users to compare their coins against on-screen sketches.
Result interpretation
We didn't find any specific result interpretation in the app or on the website yet. Based on how the app performs the test, it seems to check whether a coin's sound matches that of a genuine one in the database.
Pricing
The StackerTool app is free to download and offers tests for 6 silver coins and 2 gold coins for free. A Pocket Pinger coupon code is needed to unlock all coins. Users need to buy the Pocket Pinger tool to get the coupon code.
Comparison Table
| App | Since | Coins | Precision* | Free Tier | Price |
|---|---|---|---|---|---|
| BullionTest | 2013 | 28 | Medium | Yes (1 coin) | $3.49 |
| Ping Coin | 2018 | 37 | Medium | Yes (37 coins) | Free |
| Precious Coin Tester | 2019 | 40,000+ | Medium/High | Yes (639 coins) | $2,99/month |
| Coin Tester | 2023 | 15 | Medium | No | ~$10/month |
| StackerTool | 2025 | 21 | Medium | Yes (8 coins) | $35 |
*Note: In the Precision column, Medium refers to a Sound Match-based result, while High indicates results based on purity estimation.
Have you found the App that best fits your need? Share this guide with fellow collectors!