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 apps like Sigma Mini
10+ similar apps compared and reviewed
4.2 avg rating
10 free apps
Updated September 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
4.5😐(535 ratings)
FreeIn-App Purchases
This app helps you test the authenticity of gold and silver coins by analyzing the sound they make when pinged. It provides detailed results to distinguish genuine coins from fakes, helping you avoid costly mistakes.
What We Love
- ✅ Accurately detects counterfeit coins and fakes
- 💰 Saves money by preventing fraudulent purchases
- 🆓 Free version available with basic functionality
- 📱 Easy to use interface for most users
- 🎯 Works well with Pocket Pinger device
- 🔍 Helpful for hearing-impaired users
- ⚡ Fast and reliable when working properly
- 🛡️ Provides peace of mind for coin collectors
Room to Improve
- 💳 Subscription model frustrates users
- 🔐 Most coins locked behind paywall
- 🐛 Frequent network errors and crashes
- 🔍 Poor search functionality
- 📊 Inconsistent and unreliable results
- ❌ Missing many common coins in database
- 😤 False positives on counterfeit detection
- 🎮 Clunky and finicky user interface
- 📅 Database not updated beyond 2021
- ⚠️ Misleading advertising about free features
4.4😐(121 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
- 👍 Intuitive and easy to use
- ✅ Accurate coin authenticity verification
- 🚀 Fast and efficient operation
- 💡 Constantly developing and updating
- ✨ Useful for checking grandfather's collection
- 💯 Works 100% according to its purpose
- 👍 Highly recommended by users
- 👍 Works as expected for most users
- 👍 Good for checking gold and silver coins
- 👍 Very precise and useful
- 👍 Best app for coin testing
- 👍 Simple and clear application
Room to Improve
- 💰 App requires payment for features
- ❓ No mention of paid access upfront
- 💳 Monthly subscription for ping test
- 📉 Limited database of coins
- ❌ Not accurate for all coin types
- ❌ Test results can be misleading
- 👎 Does not work even with external devices
- 👎 Fails to identify genuine coins
- 👎 Test results are not reliable
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Antique Coin Identifier Value
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Instantly identify antiques, stamps, coins, and banknotes using AI with just a photo. Learn historical context, gain insights, and estimate values for your collection. Organize your finds and become an expert.
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