Instantly Verify Your Precious Metal Coins
Professional-grade counterfeit detection in your pocket. Protect your investment with acoustic authentication technology.
Counterfeiters Are Getting Smarter. Are You?
Professional Testing, Pocket Change Price
Sigma verifiers cost $1,500+. XRF scanners cost $30,000. Pingcoin gives you science-backed acoustic verification for just $29/year. Combined with basic checks, expensive equipment becomes unnecessary.
Always With You
Coin show? Estate sale? Your authenticator is already in your pocket. Don't buy blind.
Zero Damage
No acid. No files. No scratches. Keep your coins in mint condition while verifying them.
Catch One Fake, Save a Lifetime
A single fake gold coin costs you $4,000+. Catching just one counterfeit pays for over 60 years of Pingcoin protection.
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.
Select Your Coin
Choose from 23 silver coins or 14 gold coins. Popular options: Eagles, Maple Leafs, Buffalos, Philharmonics, Krugerrands.
Tap & Record
Gently tap your coin and let the app capture the sound. Advanced algorithms analyze three key frequencies.
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
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.
⚙️ 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.
33 Coins Supported
Professional authentication for the most popular silver and gold bullion coins
Key Features & Benefits
- 33 Coin Types Supported - 19 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
"Wow im really impressed with this app, im new to silver coin / round collecting so i am still a little unsure of some of the coins i have bought, used this app and they all came back as genuine. I also had one known fake coin which i tested and it came back as fake."
"Simple app, does what it needs to do."
"Very good for testing silver and gold coins"
"I was surprised how easy and quick it identified coins"
"Works very well and accurate on Samsung A20"
"It works it's basic, it won't ping random blank silver bouillon. But most minted gold and silver coins are on this app it's good."
"What an amazing app!"
"Great app, much needed."
"I downloaded your app last month. I buy mostly from big sellers so don't get a lot of sus coins. But I like the way it works and it's another nice way to confirm that my silver/gold is legit. Thanks!"
r/SilverbugsFeatured 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
- 10 verdicts per month
- Access to all 37 coin types
- Instant results
- Offline functionality
- Perfect for occasional testing
Premium Plan
- Unlimited verdicts
- Access to all 37 coin types
- Instant results
- Offline functionality
- Priority support
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.
33
Coins Supported
6+
Years Trusted
260+
User Reviews