Comparison

Metalynx vs Certi

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

Head to head
About

Metalynx

This app helps precious metal professionals instantly calculate dimensions and weights for gold, silver, and platinum items. It supports multiple purity levels, units of measurement, and provides live market prices and charts.

Highlights
  • Automatic dimensional calculations for precious metals
  • Supports multiple purity levels for gold, silver, platinum
  • Customizable units for weight and dimensions
  • Live market prices and London Fix data
  • Technical and historical charts
  • Multi-language support (English, French)
Features
Read full description

Designed for everyone who works with precious metals, Kitco Metals Inc.’s free Metalynx app automatically calculates the dimensions of gold, silver and platinum items. It can handle three purity levels of gold, two of silver and two of platinum. Weights can be expressed in user-selectable units. For standard precious metal mill products, it can automatically determine weight, length, diameter or thickness given the other dimensions. Conversions and calculations are performed instantly using customizable criteria. Here are some of the salient features of this powerful little app: •Three purity levels for gold, two for silver and two for platinum •Automatic dimensional calculations for common jewelry mill products including sheets; round and square tubes; and round, half-round, square and rectangular wires and half-round wires •Weights in troy ounces, grams, kilograms or pennyweights •Dimensions in inches, millimeters or gauges (as applicable) •Live market prices and London Fix prices for gold, silver and platinum from Kitco.com, the world’s #1 precious metals information website •Prices customizable with three units of weight and 14 currencies •Full-screen rotatable technical and historical charts •English and French language options

About

Certi

This app uses synthetic DNA technology to authenticate precious metals, providing instant verification of gold and silver investments. Scan a card to see factory-sealed photos and confirm the authenticity of your items, ensuring peace of mind for investors.

Highlights
  • Synthetic DNA authentication
  • Barcode scanning
  • Factory-sealed product photos
  • Tamper-evident seal verification
  • Collection tracking
  • Instant results
  • Dark mode
Features
Read full description

Worried about fake gold or silver? You're not alone. Every year, investors lose millions to counterfeit precious metals. Certi-Lock® changes everything. Instant Authentication, Total Peace of Mind Developed by Scottsdale Mint - the same company trusted by central banks in 40+ countries - Certi-Lock® is the only app that verifies precious metals using actual synthetic DNA technology. How It Works (It's Simple!): Scan the barcode on your Certi-Lock® card Instantly see factory-sealed photos of YOUR exact product Verify DNA authentication & tamper-evident seals Done! Know your investment is 100% genuine What Makes Certi-Lock® Different: - DNA Technology - Not just surface verification, but lab-grade authentication - Factory Photos - See your exact item as it was sealed at the mint - No Registration - Start verifying immediately - Track Collections - Organize and monitor all your precious metals - Lightning Fast - Results in under 2 seconds - Dark Mode - Easy on your eyes during late-night trading Trusted by: Individual investors in 40+ countries Precious metals dealers worldwide IRA custodians and vault storage facilities Anyone serious about protecting their wealth From Scottsdale Mint: ISO 9001:2015 certified. IRA approved. Manufacturing excellence since 2008. Download now and verify your first item in under 30 seconds.

Screenshots

Metalynx4 screens
Certi4 screens

Verdict

The call

The clearest difference is rating: Metalynx at 4.9 against Certi's 3.8. Certi's advantage is update cadence (every 3 days vs every 20 months). On price, review sentiment, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Metalynx holds the better App Store score, 4.9 against 3.8. Both are backed by a comparable volume of ratings — 8 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Metalynx ships an update every 20 months, Certi every 3 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Metalynx versus Certi: the parameters behind the verdict, then further details
ParameterMetalynxCerti
PriceFreeFree
Rating4.9 (8 ratings) — better3.8 (6 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings8 — better6
Update frequencyEvery 20 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size41 MB39 MB
Age rating4+4+
DeveloperKitco Metals IncScottsdale Mint LLLP

Customer experience

Metalynx

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Certi

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Metalynx

No in-app purchases

None

Certi

No in-app purchases

Questions

Is Metalynx free?
Metalynx is free to download, with no in-app purchases.
Is Certi free?
Certi is free to download, with no in-app purchases.
Which has better reviews, Metalynx or Certi?
Metalynx is rated higher. Metalynx averages 4.9 out of 5 from 8 ratings, while Certi averages 3.8 from 6 ratings.
Do Metalynx or Certi have ads?
Neither Metalynx nor Certi shows ads.
Which is updated more often, Metalynx or Certi?
Metalynx ships an update every 20 months, and Certi every 3 days. Most recently, Metalynx was updated on November 1, 2026 and Certi on November 5, 2026.

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