Comparison

EchoLink vs StackerTools Coin and Bar Test

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

Head to head
About

EchoLink

Connect to the EchoLink network using your iOS device. This application allows validated Amateur Radio operators to access the system from virtually anywhere. Registration with a valid Amateur Radio callsign is required.

Highlights
  • Connect to EchoLink network
  • Use on iPhone, iPad, iPod touch
  • Validated user access
  • Remote connectivity
Features
Read full description

Please note: This app is for licensed Amateur Radio operators only. See www.echolink.org for more information. EchoLink for iOS provides access to the EchoLink network for validated EchoLink users. You can use this app to connect to the EchoLink system from almost anywhere, using an iPhone, iPad, or iPod touch. If you are not already a validated EchoLink user, you will be required to register (using your Amateur Radio callsign and a password of your choice) the first time you run the app. Please see the iPhone FAQ at www.echolink.org. Please direct any bug reports or feature suggestions to the Web site at http://www.echolink.org/support.htm, since developers do not read app reviews. If you are interested in becoming a licensed Amateur Radio operator, see www.arrl.org for more information. EchoLink is a registered U.S. trademark of Synergenics, LLC.

About

StackerTools Coin and Bar Test

Detect counterfeit precious metals like gold, silver, and bullion using sound. This tool acts as a bar and coin tester, helping you verify authenticity.

Highlights
  • Counterfeit detection
  • Verify gold coins
  • Verify silver coins
  • Test bullion
  • Sound-based analysis
  • Bar and coin tester
Features
Read full description

Counterfeit Detection: Verify Gold Coins, Silver Coins, Rounds and Bars with Sound. StackerTools is a coin and bar tester that listens to the “ping” of your precious metals. Gently tap a coin and the app compares its ring with verified genuine examples, or tests it against a physics-backed acoustic model. The app is 100% included with the Pocket Pinger. The password is in the Bonus Pack. WHAT YOU CAN TEST • Gold and silver bullion coins such as American Eagles, Maple Leafs, Krugerrands and more • Silver rounds and 1 oz silver bars • Many other items and tests available, with more coming HOW IT WORKS Pick your coin or bar from the catalog, or search for it. Tap Start and gently ping the item. See the result in seconds: PASS, OK, CAUTION, or FAIL, with tips when a retest is needed. TEST MODES • Peaks: checks the item’s key ring tones • Run: tests several pings in a row • Pro: adds ping-time checks plus size and weight • Acoustic Models: measure your items for custom tests MORE FEATURES • Bookmark Favorites to find the items you test most • Search the catalog, with “See All” keeping your search • Sync the catalog to your phone for offline testing • Get Paid: upload test data and photos, or post new items to the catalog Questions? We’re here to help: Support@StackerTools.com

Screenshots

EchoLink3 screens
StackerTools Coin and Bar Test4 screens

Verdict

The call

The clearest difference is rating: StackerTools Coin and Bar Test at 4.5 against EchoLink's 3.9. StackerTools Coin and Bar Test also leads on review sentiment (89% vs 62%) and update cadence (every 3 weeks vs every 4 months). EchoLink's advantage is iOS requirement (13.0 vs 15.6). On price, ratings volume, ads and in-app purchases 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

StackerTools Coin and Bar Test holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 44 and 44 respectively. Written reviews point the same way: 62% of EchoLink's written reviews are positive against 89% of StackerTools Coin and Bar Test's.

UpkeepUpdate frequency

EchoLink ships an update every 4 months, StackerTools Coin and Bar Test every 3 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
EchoLink versus StackerTools Coin and Bar Test: the parameters behind the verdict, then further details
ParameterEchoLinkStackerTools Coin and Bar Test
PriceFreeFree
Rating3.9 (44 ratings)4.5 (44 ratings) — better
Positive reviews61.5% of reviews88.9% of reviews — better
Number of ratings4444
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size20 MB31 MB
Age rating4+4+
DeveloperSynergenics, LLCSoundMoneyMetals

Customer experience

EchoLink

All ratings41 ratings
Positive68.3%
Neutral12.2%
Negative19.5%
Written reviews382 reviews
Positive61.5%
Neutral12.0%
Negative26.4%

StackerTools Coin and Bar Test

All ratings44 ratings
Positive86.4%
Neutral2.3%
Negative11.4%
Written reviews18 reviews
Positive88.9%
Neutral5.6%
Negative5.6%

Bugs and requests

EchoLink

Reported bugs

13 issues
  • Latest version (2.19) could use some improvement
  • No way to reset password
  • Doesn't seem to be working on my phone, I enter call sign, password, and email. I click on login and nothing happens
  • Just updated EchoLink to find that it's now stuttering all the time
  • After the upgrade there are connection issues
Show 8 more
  • No support for passwords longer than 14 characters
  • The app won't allow me back in to validate my information
  • Doesn't work on iphone
  • Unable to Use; Password Too Long
  • Cannot connect to local reapeater
  • Can't close app
  • Latest update issues
  • Cannot connect

Requested features

13 requests
  • Bigger PTT please?
  • Add more to app
  • Password reset in app option
  • Almost There!
  • Bigger PTT please?
Show 8 more
  • Searching for call sign s
  • Not able to connect with 14.4 iOS upgrade
  • Mac version
  • Dark Mode Wonky
  • Missing Nodes
  • Echolink multitasking
  • Needs a help or tutorial
  • Needs full sysop node server capabilities

StackerTools Coin and Bar Test

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

EchoLink

No in-app purchases

None

StackerTools Coin and Bar Test

No in-app purchases

Questions

Is EchoLink free?
EchoLink is free to download, with no in-app purchases.
Is StackerTools Coin and Bar Test free?
StackerTools Coin and Bar Test is free to download, with no in-app purchases.
Which has better reviews, EchoLink or StackerTools Coin and Bar Test?
StackerTools Coin and Bar Test is rated higher. EchoLink averages 3.9 out of 5 from 44 ratings, while StackerTools Coin and Bar Test averages 4.5 from 44 ratings.
Do EchoLink or StackerTools Coin and Bar Test have ads?
Neither EchoLink nor StackerTools Coin and Bar Test shows ads.
Which is updated more often, EchoLink or StackerTools Coin and Bar Test?
EchoLink ships an update every 4 months, and StackerTools Coin and Bar Test every 3 weeks. Most recently, EchoLink was updated on October 23, 2026 and StackerTools Coin and Bar Test on October 25, 2026.

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