Comparison

Coin Tester. vs SlashDiablo

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

SlashDiablo

Stay connected with the SlashDiablo community, a Diablo II private server. Chat with players, view character stats, track your progress on the ladder, and monitor your item collection. This app keeps you informed about server status and community activity.

Highlights
  • Real-time player chat
  • Character stat lookup
  • Ladder rankings
  • Holy Grail item tracker
  • Server status updates
  • Community stats
Features
Read full description

SlashDiablo Companion is the essential mobile app for the SlashDiablo community - a beloved, vanilla-like Diablo II private server that's been running for over a decade. STAY CONNECTED • Chat with fellow players in real-time using your SlashDiablo account • See who's online and never miss a trade or group opportunity • Get server status updates and community stats at a glance ARMORY • Look up any character on the server • View detailed character stats, equipped items, and builds • Track your own characters across all your accounts LADDER RANKINGS • Browse the current ladder standings • Filter by class, game mode (Softcore/Hardcore), and ladder type • Track your progress against the competition HOLY GRAIL TRACKER • Track your progress toward collecting every unique and set item • Monitor multiple accounts and characters • See your completion percentage and what items you still need COMMUNITY STATS • View live server statistics • See total accounts, characters, and active players • Check Discord community activity PRIVACY FIRST • Your account credentials are stored securely on your device only • No data is collected or shared with third parties • Full control to delete all your data at any time Whether you're a veteran Slash player or just getting started, this companion app keeps you connected to the community wherever you go. SlashDiablo is a free-to-play, vanilla-style Diablo II private server focused on fair play and community. This app is made with love by the community, for the community. Note: This app requires a SlashDiablo account. Visit slashdiablo.net to register and join the adventure!

Screenshots

Coin Tester.4 screens
SlashDiablo4 screens

Verdict

The call

The clearest difference is rating: SlashDiablo at 5.0 against Coin Tester.'s 4.4. SlashDiablo also leads on review sentiment (100% vs 65%) and in-app purchases (none vs 3). Coin Tester.'s advantage is ratings volume (123 vs 1). 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. SlashDiablo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SlashDiablo holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Coin Tester. has 123 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 65% of Coin Tester.'s written reviews are positive against 100% of SlashDiablo's.

UpkeepUpdate frequency

Coin Tester. ships an update monthly, SlashDiablo every 5 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
Coin Tester. versus SlashDiablo: the parameters behind the verdict, then further details
ParameterCoin Tester.SlashDiablo
PriceFreeFree
Rating4.4 (123 ratings)5.0 (1 ratings) — better
Positive reviews64.7% of reviews100.0% of reviews — better
Number of ratings123 — better1
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size95 MB31 MB
Age rating4+12+
DeveloperGrowth & ValueSean Woodliffe

Customer experience

Coin Tester.

All ratings121 ratings
Positive86.8%
Neutral0.0%
Negative13.2%
Written reviews34 reviews
Positive64.7%
Neutral0.0%
Negative35.3%

SlashDiablo

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

SlashDiablo

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

SlashDiablo

No in-app purchases

Questions

Is Coin Tester. free?
Coin Tester. is free to download, with in-app purchases available.
Is SlashDiablo free?
SlashDiablo is free to download, with no in-app purchases.
Which has better reviews, Coin Tester. or SlashDiablo?
SlashDiablo is rated higher. Coin Tester. averages 4.4 out of 5 from 123 ratings, while SlashDiablo averages 5.0 from 1 ratings.
Do Coin Tester. or SlashDiablo have ads?
Neither Coin Tester. nor SlashDiablo shows ads.
Which is updated more often, Coin Tester. or SlashDiablo?
Coin Tester. ships an update monthly, and SlashDiablo every 5 days. Most recently, Coin Tester. was updated on November 3, 2026 and SlashDiablo on October 30, 2026.

Other comparisons