Comparison

Coin Tester. vs Linking Drones

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

Head to head
About

Coin Tester.

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.

Highlights
  • Acoustic resonance coin testing
  • Artificial intelligence analysis
  • Detects counterfeit coins
  • Supports gold and silver bullion coins
  • Database of coin vintages
  • Regular updates for accuracy
Read full description

Coin Tester is an advanced application that allows users to verify the authenticity of one-ounce gold and silver coins. The application uses the method of acoustic resonance (known as the ping test) and artificial intelligence to determine whether the user is dealing with a genuine coin. When struck, a coin vibrates and emits a unique sound, primarily influenced by its dimensions and the material it is made of. For example, a gold Maple Leaf will sound different than a silver Krugerrand when struck. An authentic gold or silver coin will produce a different sound than a counterfeit one. These differences are precisely used by the Coin Tester application. Interestingly, mints release coins each year with a newly physically minted vintage. Additionally, changes in the coin production process, wear and tear, and the appearance of patina on silver create minor differences that affect the sound of the coins. Using artificial intelligence, the Coin Tester application guides users through the coin verification process and assists in determining the authenticity of the product. We have access to a large database of new and circulating coins, allowing us to regularly add updates that include coins from new vintages. This ensures that the application functions accurately for all types of coins, regardless of their condition, type, or minting year. With subscriptions, you can access coin verification for a week, a month or a year. Current list of gold coins: Britannia 1 oz American Eagle 1 oz Vienna Philharmonic 1 oz Australian Kangaroo 1 oz Krugerrand 1 oz Canadian Maple Leaf 1 oz American Bison 1 oz Australian Emu 1 oz Current list of silver coins: Britannia 1 oz American Eagle 1 oz Vienna Philharmonic 1 oz Australian Kangaroo 1 oz Krugerrand 1 oz Canadian Maple Leaf 1 oz Armenian Noah's Ark 1 oz

About

Linking Drones

Read full description

This app is for use with the Linking One delivery drone. It allows users to set their routes, step though the safety checks, and fly the drone to its destination.

Screenshots

Coin Tester.4 screens
Linking Drones4 screens

Verdict

The call

The clearest difference is in-app purchases: Linking Drones at none against Coin Tester.'s 3. Coin Tester.'s advantage is update cadence (monthly vs every 4 months). On price, ads, device support and iOS requirement 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. Coin Tester. sells 3 in-app purchases, starting at $9.00 per month. Linking Drones asks for nothing beyond the download.

UpkeepUpdate frequency

Coin Tester. ships an update monthly, Linking Drones every 4 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
Coin Tester. versus Linking Drones: the parameters behind the verdict, then further details
ParameterCoin Tester.Linking Drones
PriceFreeFree
Rating4.4 (121 ratings) — better—
Positive reviews64.7% of reviews—
Number of ratings121 — better—
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.013.4 — better
Further details — not scored
Size95 MB65 MB
Age rating4+4+
DeveloperGrowth & ValueLinking Drones

Bugs and requests

Coin Tester.

Reported bugs

3 issues
  • Test results are not accurate
  • App fails to identify genuine coins
  • App gives positive test for non-coin objects

Requested features

3 requests
  • Expand coin database
  • Improve accuracy of tests
  • Clarify pricing and subscription model upfront

Linking Drones

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Coin Tester.

Subscriptions2
  • Monthly Access$9.001 Month
  • Annual Access$72.001 Year
One-time1
  • 7-Day Access$19.00
None

Linking Drones

No in-app purchases

Questions

Is Coin Tester. free?
Coin Tester. is free to download, with in-app purchases available.
Is Linking Drones free?
Linking Drones is free to download, with no in-app purchases.
Do Coin Tester. or Linking Drones have ads?
Neither Coin Tester. nor Linking Drones shows ads.
Which is updated more often, Coin Tester. or Linking Drones?
Coin Tester. ships an update monthly, and Linking Drones every 4 months. Most recently, Coin Tester. was updated on October 8, 2026 and Linking Drones on October 2, 2026.

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