This application connects to a specialized SH box to analyze diamond images. It uses various illuminations to capture photos and distinguish between natural and lab-grown diamonds.
3.7(7 ratings)
Free
Best Sigma Mini alternatives: apps like Sigma Mini
10+ similar apps compared and reviewed
4.2 avg rating
10 free apps
Updated November 2026
Whether you want more options like Sigma Mini or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
Top Alternatives to Sigma Mini
4.5๐(536 ratings)
FreeIn-App Purchases
This app helps identify real gold or silver coins by analyzing their unique ring. It compares your coin's sound to a database of genuine coins, detecting fakes that might pass visual inspection. Access a large database of coins and their metal values, with options to add custom coins.
What We Love
- โ Accurately detects counterfeit coins and fakes
- ๐ฐ Saves money by preventing fraudulent purchases
- ๐ Free version available with basic functionality
- ๐ฑ Easy to use interface for most users
- ๐ฏ Works well with Pocket Pinger device
- ๐ Helpful for hearing-impaired users
- โก Fast and reliable when working properly
- ๐ก๏ธ Provides peace of mind for coin collectors
Room to Improve
- ๐ณ Subscription model frustrates users
- ๐ Most coins locked behind paywall
- ๐ Frequent network errors and crashes
- ๐ Poor search functionality
- ๐ Inconsistent and unreliable results
- โ Missing many common coins in database
- ๐ค False positives on counterfeit detection
- ๐ฎ Clunky and finicky user interface
- ๐ Database not updated beyond 2021
- โ ๏ธ Misleading advertising about free features
4.4๐(123 ratings)
FreeIn-App Purchases
This app helps you verify the authenticity of one-ounce gold and silver coins using acoustic resonance and artificial intelligence. It analyzes the unique sound a coin makes when struck to detect counterfeits. Regular updates ensure accuracy for various coin types and conditions.
What We Love
- ๐ Intuitive and easy to use
- โ Accurate coin authenticity verification
- ๐ Fast and efficient operation
- ๐ก Constantly developing and updating
- โจ Useful for checking grandfather's collection
- ๐ฏ Works 100% according to its purpose
- ๐ Highly recommended by users
- ๐ Works as expected for most users
- ๐ Good for checking gold and silver coins
- ๐ Very precise and useful
- ๐ Best app for coin testing
- ๐ Simple and clear application
Room to Improve
- ๐ฐ App requires payment for features
- โ No mention of paid access upfront
- ๐ณ Monthly subscription for ping test
- ๐ Limited database of coins
- โ Not accurate for all coin types
- โ Test results can be misleading
- ๐ Does not work even with external devices
- ๐ Fails to identify genuine coins
- ๐ Test results are not reliable
