Ring True: Detect Silver, Gold
Coin ring test for collectors
Free · Designed for iPad. Not verified for macOS.
Does your coin ring true? Tap it three times and Ring True estimates its silver or gold content from the sound. Free, no ads, no account, 75+ coins built in.
Strike a coin, hear the truth. Ring True estimates the silver content of ANY coin from the sound it makes — no per-coin database required.
Real physics, not guesswork: a coin rings at frequencies set by its size and its metal's stiffness. Silver rings lower and dramatically longer than copper-nickel. Enter the coin's diameter and weight (or pick a preset - Morgans, pre-1965 US coinage, Silver Eagles, Maples, world crowns), balance it on a fingertip, tap its edge, and the app captures and analyzes the ring automatically.
• Silver percentage estimate from the ring tone
• Gold mode for gold–copper coins like Gold Eagles and Krugerrands
• Independent density cross-check flags clad, plated, and filled fakes
• Ring sustain (Q) analysis - genuine silver rings for seconds
• Automatic rejection of knocks, taps, and background noise
• Size-class mode for coins you don't have exact specs for
• Bonus magnetometer mode: instantly catch ferrous (iron/steel) fakes
Everything runs on your phone. No account, no ads. Nothing is sent anywhere unless you choose to send feedback on a result.
Results are estimates for hobby use, not a professional assay.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Silver Detector is now Ring True, with a new icon.
• Australian 1946–63 florins and shillings now read correctly as 50% silver.
• Dimes and other small coins are less likely to come back inconclusive.
The developer, Adam Sanfacon, 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
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Adam Sanfacon
- Size
- 41.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Synaptic Solutions LLC