Instantly Verify Your Precious Metal Coins with a Simple Tap

Professional-grade counterfeit detection in your pocket. Protect your investment with acoustic authentication technology.

★★★★★
4.35/5
260 reviews
50K+
Downloads
6+
Years Trusted

Counterfeiters Are Getting Smarter. Are You?

⚠️ Sophisticated Counterfeits

Chinese fakes use 3D scanners and CNC mills to create near-perfect replicas flooding the market.

💰 Expensive Testing

XRF scanners and ultrasound equipment cost thousands of dollars.

🚨 High Financial Risk

One fake gold coin could cost you $2,000+

🤝 Trust Issues

How do you verify coins from new dealers or private sellers?

One fake gold coin could cost you $2,000+

How It Works

Like musical instruments, coins produce unique resonance frequencies based on their material and composition. Pingcoin captures and analyzes your coin's acoustic signature, comparing it against verified reference values in milliseconds.

How Pingcoin Works
1

Select Your Coin

Choose from 23 silver coins or 14 gold coins. Popular options: Eagles, Maple Leafs, Buffalos, Philharmonics, Krugerrands.

2

Tap & Record

Gently tap your coin and let the app capture the sound. Advanced algorithms analyze three key frequencies.

3

Instant Verdict

Get immediate results: "Authentic" or "Not Recognized". Know in seconds, not days.

Industry-Proven Technology

Vibrational analysis is trusted worldwide across critical industries for structural integrity monitoring and material verification

Finite Element Method analysis of coin vibration

FEM simulation showing vibrational modes of a coin

Science-Backed Authentication

We've run Finite Element Method (FEM) analyses to understand and predict how coins vibrate and produce sound. This computational modeling allows us to precisely map the acoustic signatures that distinguish authentic coins from counterfeits.

Proven Across Industries

Vibrational analysis is a well-established, industry-proven method for assessing the integrity of structures and materials. This non-destructive testing technique is trusted across critical applications worldwide.

🌉 Bridge Inspection

Engineers use vibration testing to detect structural defects in bridges without causing damage. Modal analysis helps identify weaknesses before they become critical failures.

✈️ Aerospace Engineering

Aircraft components undergo rigorous vibration testing to ensure structural integrity. NASA and aerospace manufacturers rely on modal analysis to verify component authenticity and detect manufacturing defects.

⚙️ Industrial Equipment

Predictive maintenance programs monitor vibrations in rotating machinery to detect bearing wear, imbalance, and other issues before equipment failure occurs.

🏗️ Building Safety

Structural health monitoring systems use vibration sensors to continuously assess building integrity, especially critical for earthquake-prone regions and high-rise structures.

🔧 Modal Analysis

Industrial vibration testing solution for structural integrity monitoring across aerospace, automotive, civil engineering, and power generation sectors. Accelerometers and force sensors measure dynamic responses of critical components like turbines and engine assemblies to detect structural weaknesses and optimize performance.

37 Coins Supported

Professional authentication for the most popular silver and gold bullion coins

Key Features & Benefits

  • 37 Coin Types Supported - 23 silver coins + 14 gold coins - View all coin specifications
  • Non-Destructive Testing - No scratching, no acid, no damage to your valuable coins
  • Instant Results - Know in seconds whether your coin is authentic
  • Works Offline - No internet connection required
  • Pocket-Sized - No expensive equipment needed
  • Based on Physics - Time-tested acoustic resonance principles

What Our Users Are Saying

Real reviews from precious metals collectors and investors on Google Play

Featured by Top YouTubers

See what coin collectors and precious metals experts are saying about Pingcoin

Perfect For

📊 Precious Metals Investors

Verify your stack before sealing the safe

🪙 Coin Collectors

Authenticate additions to your collection

💼 Dealers & Brokers

Quick first-line screening for inventory

🏛️ Estate Evaluators

Rapid assessment of inherited collections

🎁 Gift Recipients

Verify that wedding or graduation coin is genuine

🛒 Private Buyers

Test before you buy from individual sellers

Choose Your Protection Plan

Less than the cost of a single counterfeit coin

Free Plan

$0
per month
  • 10 verdicts per month
  • Access to all 37 coin types
  • Instant results
  • Offline functionality
  • Perfect for occasional testing
Start Free

Premium Plan

$29
per year (just $2.42/month)
  • Unlimited verdicts
  • Access to all 37 coin types
  • Instant results
  • Offline functionality
  • Priority support
Go Premium

Frequently Asked Questions

What is the ping test?

The ping test is a time-honored method where you tap a coin and listen to its ring. Genuine precious metals produce a distinctive, sustained tone, while counterfeits sound dull. Pingcoin digitizes this test with precision audio analysis.

How accurate is Pingcoin?

Pingcoin compares your coin's resonance frequencies against verified reference values. While highly effective, some coins with similar composition may have overlapping frequencies. We recommend using the ping test alongside other verification methods (weight, dimensions, visual inspection). Learn more about best practices in our documentation.

What coins are supported?

Currently 23 silver coins and 14 gold coins, including popular options like American Eagles, Canadian Maple Leafs, Austrian Philharmonics, Gold Buffalos, Krugerrands, and more. View detailed specifications and authentication guides for each coin.

Does it work on bars?

The app is optimized for coins. Bars have different acoustic properties and may not provide reliable results.

Is my data private?

Yes. Pingcoin works completely offline. No audio recordings or coin data leave your device.

What devices are supported?

Android devices via Google Play Store. iOS version coming soon.

Protect Your Investment Today

Join thousands of collectors who trust Pingcoin to safeguard their precious metals collection.
Don't let counterfeiters win. Download Pingcoin and verify with confidence.

Download on Google Play

37

Coins Supported

6+

Years Trusted

260+

User Reviews