Sigma Mini vs Coin Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sigma Mini
This utility app connects to a specific hardware device for enhanced functionality. It allows users to interact with and control the connected device, providing a seamless experience for its intended purpose. The application is designed for users who own the associated hardware.
- Connects to Sigma Metalytics Mini
- Device interaction and control
- Enhanced functionality for users
- Seamless user experience
Read full descriptionHide full description
App to be used with the Sigma Metalytics Mini
Coin Scanner
Instantly identify coins by snapping a photo. Get detailed information on value, rarity, and market trends. Explore numismatic history and learn with expert articles and an AI chatbot.
- AI coin identification
- Coin value lookup
- Detailed coin specifications
- Pricing history and trends
- Numismatic chatbot
- Educational articles
Read full descriptionHide full description
Coin Scanner & Value Checker is a powerful mobile app — your all-in-one AI-powered coin identifier and coin values checker app — for fast, reliable coin value lookups. What it does Snap a photo (both sides) or upload an image — our AI coin scanner matches it against a large catalog to return the coin identification value, current coins prices and values, and key details (mintage, metal, year, mint mark). It’s an easy app to value coins whether you’re sorting finds, doing a quick coin appraisal, or managing a collection. Identification process 1. Select or shoot: Choose from gallery or photograph the coin (obverse & reverse). 2. AI match: The app recognizes type, year, and mint, then estimates coin value. 3. Details & trends: View specifications, rarity notes, and pricing history to evaluate rare coins worth considering. Why collectors love it • Instant recognition: Point, scan, and identify rare coins and common issues alike — see which coins worth money. • Pricing insights: Review up-to-date coin value ranges, including mint coins value and market comps. • Pro tooling: Handy for coin collection valuation and quick checks (a true coin checker / coin value app). Instant Professional Grading Meet Grading—the ultimate tool for assessing coin condition instantly. Just snap a clear photo to receive a precise grade estimate and discover how preservation impacts its market price. It’s the easiest way to understand the exact state of your coins and maximize the value of your entire collection. Numismat Chatbot Ask anything about any coin — history, origin, metal, rarity, or current market value — and get instant answers from a true AI coin expert. Our smart chatbot helps you discover hidden treasures, learn fun facts, and understand what makes each coin unique. Useful Articles For those who are just getting acquainted with the world of numismatics, a section with useful articles has been created. The materials are designed for different levels — from beginners to professionals. The articles are updated regularly, making it a great way to expand your knowledge. Premium Subscription - Payment will be charged to your iTunes account upon confirmation of purchase. - The subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. - Your account will be charged for renewal within 24 hours before the end of the current period, and the renewal cost will be specified. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription, where applicable. - You can manage your subscriptions and turn off auto-renewal in your account settings after purchase. Privacy Policy: https://telegra.ph/Privacy-Policy-12-30-114 Terms and Conditions: https://telegra.ph/Terms-Of-Use-12-30-3
Screenshots
Verdict
The clearest difference is in-app purchases: Sigma Mini at none against Coin Scanner's 16. Sigma Mini also leads on ads (none vs shown) and rating (5.0 vs 4.5). Coin Scanner's advantage is ratings volume (1.4K vs 2) and review sentiment (57% vs 38%). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Coin Scanner sells 15 in-app purchases, starting at $4.99 per 7 days. Sigma Mini asks for nothing beyond the download.
Sigma Mini holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Coin Scanner has 1.4K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 38% of Sigma Mini's written reviews are positive against 57% of Coin Scanner's, so the app with the better star average is not the one people write more warmly about.
Sigma Mini ships an update every 2 months, Coin Scanner every 2 weeks. The most recent releases landed on October 17, 2026 and October 23, 2026 respectively.
| Parameter | Sigma Mini | Coin Scanner |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.5 (1.4K ratings) |
| Positive reviews | 37.5% of reviews | 57.2% of reviews — better |
| Number of ratings | 2 | 1.4K — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #81 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 6 MB | 126 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Bessette | UMI GEVES LTD |
Customer experience
Sigma Mini
Coin Scanner
Bugs and requests
Sigma Mini
Not enough reviews yet to summarise bugs or requests.
Coin Scanner
Reported bugs
3 issues- Constant errors when scanning coins
- Incorrect coin year identification
- App crashes or kicks users out
Requested features
3 requests- Ability to identify error coins
- Support for more coin types
- Improved accuracy and reliability
In-app purchases
Sigma Mini
No in-app purchases
Coin Scanner
- Coin scanner & price tracker$4.997 Days
- Weekly Premium$4.997 Days
- Weekly Trial$9.997 Days
Show 10 moreShow fewer
- Coin scanner & price tracker7 Days trial$9.997 Days
- Weekly Offer3 Days trial$9.997 Days
- Monthly Premium$19.991 Month
- Yearly Offer$29.991 Year
- Coin Value Identifier2 variants$39.991 Year
- Yearly Trial Premiun7 Days trial$49.991 Year
- Yearly Intro1 Month trial$49.991 Year
- Coin Value Identifier$49.991 Year
- Yearly Premium Commitment$59.991 Year
- Yearly Premiun Access$59.991 Year
- Coin Grading — Lifetime Access$9.99
- Lifetime access$59.99
Questions
Is Sigma Mini free?
Is Coin Scanner free?
Which has better reviews, Sigma Mini or Coin Scanner?
Do Sigma Mini or Coin Scanner have ads?
Which is updated more often, Sigma Mini or Coin Scanner?
Other comparisons















