Comparison

NGC vs Numis

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

NGC

This app provides coin collectors with access to essential resources from a leading third-party coin grading service. Verify coin certifications, explore population data, manage your collection, and stay updated with the latest news and research.

Highlights
  • Verify NGC Certification
  • NGC Census Population Data
  • NGC Registry for Collections
  • Latest NGC News & Research
  • Scan coin barcodes
  • Track coin rarity
Features
Read full description

The free NGC App gives coin collectors access to many of the most popular resources developed by NGC, a leading third-party coin grading service. This app now includes: • Verify NGC Certification • NGC Census • NGC Registry • The latest NGC news and research The NGC App is available in English, Chinese and German. It’s free, easy to use, and you can take it wherever the hobby takes you. Learn more about the features of the NGC App below. Verify NGC Certification: Scan the barcode on an NGC label with your phone’s camera to instantly verify the coin, view NGC Census population data, view NGC Price Guide values for US coins and add the coin to the NGC Registry. Images are shown for nearly 20 million NGC-certified coins. NGC Census: Browse the NGC Census to see population data for NGC-certified coins by type and grade (including NGC Details grades) to help you research the relative rarity of your coins. NGC Census population data is updated every week. NGC Registry: Register and display your NGC-certified coins and compete against other collectors around the world for recognition and prizes. The NGC Registry helps you to organize your collection, learn more about coins and interact with other collectors. This popular resource now boasts more than 12,000 members, 110,000 registered sets and 1.1 million registered coins from virtually every country. Free images are available for most coins graded by NGC since 2008, so you can spend less time taking photos and more time enjoying the hobby! NGC News & Research: The latest news and research from NGC are posted to the NGC App along with NGC’s complete news archive. Turn on notifications to be among the first to know about important NGC announcements, including special deals, promotions and giveaways. About Numismatic Guaranty Company® (NGC®) NGC is a leading third-party coin authentication, grading and encapsulation service with more than 43 million coins certified. Founded in 1987, NGC backs each graded coin with the comprehensive NGC Guarantee of authenticity and grade. NGC's reputation has been built on providing the high level of accuracy, consistency and integrity that its customers expect. Learn more at NGCcoin.com.

About

Numis

Features
Read full description

Numis: Coin Identifier & Value Identify coins with speed and confidence. IDENTIFY INSTANTLY Use your camera or import a photo to identify coins in seconds. Numis analyzes country, denomination, year, mint mark, and likely condition across U.S., world, and ancient coins. UNDERSTAND THE DETAILS See key coin information at a glance, including face value, collector value ranges, and comparable market activity. BUILD YOUR DIGITAL COLLECTION Save scanned coins, organize them by year, country, or value, and keep your collection in one clean place. DESIGNED FOR EVERY COLLECTOR From first-time finders to experienced numismatists, Numis makes coin discovery simple, elegant, and fast. Go Premium for unlimited scans, full value history, and advanced collection tools. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

NGC4 screens
Numis4 screens

Verdict

The call

The clearest difference is rating: Numis at 5.0 against NGC's 2.1. Numis also leads on update cadence (every 9 days vs every 2 months). NGC's advantage is in-app purchases (none vs 2) and ratings volume (78 vs 1). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Numis sells 2 in-app purchases, starting at $4.99 per month. NGC asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Numis holds the better App Store score, 5.0 against 2.1. That said, the two scores are not equally well evidenced: NGC has 78 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

NGC ships an update every 2 months, Numis every 9 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
NGC versus Numis: the parameters behind the verdict, then further details
ParameterNGCNumis
PriceFreeFree
Rating2.1 (78 ratings)5.0 (1 ratings) — better
Positive reviews6.1% of reviews—
Number of ratings78 — better1
Update frequencyEvery 2 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.6
Further details — not scored
Size69 MB11 MB
Age rating4+4+
DeveloperNumismatic Guaranty Corporation星燃 余

Customer experience

NGC

All ratings76 ratings
Positive22.4%
Neutral3.9%
Negative73.7%
Written reviews131 reviews
Positive6.1%
Neutral6.1%
Negative87.8%

Numis

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

NGC

Reported bugs

20 issues
  • App crashes when scanning barcodes
  • App crashes when entering certification numbers manually
  • Login credentials not accepted despite working on website
  • Barcode scanner detects but doesn't process codes
  • Price guide values not displaying
Show 15 more
  • Coin photos missing or not loading
  • App logs out after closing
  • Scanning functionality broken for months
  • Manual entry returns 'feature unavailable' error
  • Census data not loading or incomplete
  • App won't open or displays blank screen
  • Scanner focuses incorrectly on newer phones
  • Infinite loop when dismissing error popups
  • Sign in button not visible/clickable
  • App incompatible with iOS 14.2 and newer
  • Unable to view saved coins in registry
  • Coins added to collection disappear after app restart
  • Navigation icons and graphics not rendering
  • App freezes during barcode scanning
  • Settings menu non-functional

Requested features

15 requests
  • Total collection value calculation
  • Persistent login sessions
  • Improved barcode/QR code scanning
  • Price guide integration
  • Coin photo display
Show 10 more
  • Submission tracking within app
  • Collection inventory management
  • Mintage information display
  • Zoom functionality for verification
  • Data persistence across sessions
  • iPad/tablet support
  • Melt value information
  • Better search and filtering options
  • Automatic coin photo capture
  • Improved UI/UX design

Numis

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

NGC

No in-app purchases

2 purchases

Numis

Subscriptions2
  • Numis Pro Monthly$4.991 Month
  • Numis Pro Annual3 Days trial$29.991 Year

Questions

Is NGC free?
NGC is free to download, with no in-app purchases.
Is Numis free?
Numis is free to download, with in-app purchases available.
Which has better reviews, NGC or Numis?
Numis is rated higher. NGC averages 2.1 out of 5 from 78 ratings, while Numis averages 5.0 from 1 ratings.
Do NGC or Numis have ads?
Neither NGC nor Numis shows ads.
Which is updated more often, NGC or Numis?
NGC ships an update every 2 months, and Numis every 9 days. Most recently, NGC was updated on October 26, 2026 and Numis on October 24, 2026.

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