Comparison

Precious Coin Tester vs UPMR Tools

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

Head to head
About

Precious Coin Tester

This app helps identify real gold or silver coins by analyzing their unique ring. It compares your coin's sound to a database of genuine coins, detecting fakes that might pass visual inspection. Access a large database of coins and their metal values, with options to add custom coins.

Highlights
  • Sound-based coin authenticity testing
  • Extensive database of gold and silver coins
  • Metal value estimation
  • Custom coin input
  • Save favorite coins
  • Sync data across devices
Features
Read full description

Is that gold or silver coin real? Tap it, let it ring, and Precious Coin Tester tells you. A fake can be made to the right weight and size. Getting the sound right is much harder: how a coin rings depends on its metal, right through to its core. Precious Coin Tester knows how each genuine coin should sound at its exact weight and size, and compares your coin's ring with it. That's how the ping test catches what a surface check misses, such as plated fakes and tungsten cores. Judging a ping by ear takes years of practice. The app listens for you. WHY COLLECTORS AND STACKERS USE IT • 43,000+ gold and silver coins: search by name, nickname or face value • 650+ coins free to test, no subscription needed • Minimum purity estimate for most coins • Each coin's metal value at current gold and silver prices • Custom coins: enter weight, diameter and fineness for anything not in the database • Favourites saved to your account and synced across your devices • No acid, no chemicals, no scratch plate, no extra kit HOW IT WORKS 1. Pick the exact coin you're holding. The app can't see your coin: it compares the sound with the coin you pick. 2. Balance it on a fingertip near your phone's microphone and tap it with a hard object. 3. Hold still while it rings. Wait for the sound to fade before tapping again. Video tutorial: https://youtu.be/iWIJ7Ke50-M More tips: https://www.preciouscointester.com/en/academy/best-practices WE STAND BEHIND OUR RESULTS Report a wrong result and you can win a reward. The top reward, $200, is for a wrong 3-star result. Details: https://www.preciouscointester.com/en/challenges/report-and-win SUBSCRIPTION Subscribe to unlock the full database and custom coins. Invite friends to earn Precious Points, which also unlock coins. The subscription renews automatically; cancel any time in your App Store account settings. QUESTIONS OR IDEAS? We read every message: preciouscointester@gmail.com Website: https://www.preciouscointester.com/en/ Results are for information only. Any decision based on them is at your own risk.

About

UPMR Tools

This app provides essential tools and data for jewelry industry professionals. It includes calculators for scrap valuation, karat calculations, and conversions, along with real-time precious metal spot prices.

Highlights
  • Scrap valuation calculator
  • Karat calculation for casting
  • Unit conversions
  • Precious metal spot prices
  • Gold, Silver, Platinum, Palladium tracking
Read full description

This app offers a wide range of tools and useful information for professionals from the jewellery industry. Easy to use calculators for scrap valuation, karat calculations for casting, and conversions, as well as spot prices for precious metals including Gold, Silver, Platinum & Palladium.

Screenshots

Precious Coin Tester4 screens
UPMR Tools4 screens

Verdict

The call

The clearest difference is in-app purchases: UPMR Tools at none against Precious Coin Tester's 1. UPMR Tools also leads on rating (5.0 vs 4.5) and iOS requirement (12.0 vs 17.0). Precious Coin Tester's advantage is update cadence (fortnightly vs every 3 months) and ratings volume (536 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. Precious Coin Tester sells 1 in-app purchase, starting at $2.99 per month. UPMR Tools asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

UPMR Tools holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Precious Coin Tester has 536 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Precious Coin Tester ships an update fortnightly, UPMR Tools every 3 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard6 real differences · 4 level
Precious Coin Tester versus UPMR Tools: the parameters behind the verdict, then further details
ParameterPrecious Coin TesterUPMR Tools
PriceFreeFree
Rating4.5 (536 ratings)5.0 (1 ratings) — better
Positive reviews47.5% of reviews—
Number of ratings536 — better1
Update frequencyFortnightly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.012.0 — better
Further details — not scored
Size72 MB27 MB
Age rating12+4+
DeveloperAUGer kitUnited Precious Metal Refining, Inc.

Bugs and requests

Precious Coin Tester

Reported bugs

9 issues
  • Network error messages preventing app use
  • App crashes frequently
  • Search returns zero or inconsistent results
  • Coin detection fails or gives wrong results
  • Server downtime and connectivity issues
Show 4 more
  • False positives identifying wrong coins
  • Inconsistent results on same coins
  • Difficulty selecting regions due to sensitivity
  • Missing 2023 coins from database

Requested features

10 requests
  • One-time purchase option instead of subscription
  • Save frequently used coins for quick access
  • Improved search with keyword table of contents
  • Categorized coin database by region
  • Updated coin database through 2023+
Show 5 more
  • Better search functionality and filters
  • Free daily testing limits for casual users
  • Manual feature with improved accuracy
  • Ability to use special parameters without description
  • Better documentation and user instructions

UPMR Tools

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Precious Coin Tester

Subscriptions1
  • Unlock all coins 1 month$2.991 Month
None

UPMR Tools

No in-app purchases

Questions

Is Precious Coin Tester free?
Precious Coin Tester is free to download, with in-app purchases available.
Is UPMR Tools free?
UPMR Tools is free to download, with no in-app purchases.
Which has better reviews, Precious Coin Tester or UPMR Tools?
UPMR Tools is rated higher. Precious Coin Tester averages 4.5 out of 5 from 536 ratings, while UPMR Tools averages 5.0 from 1 ratings.
Do Precious Coin Tester or UPMR Tools have ads?
Neither Precious Coin Tester nor UPMR Tools shows ads.
Which is updated more often, Precious Coin Tester or UPMR Tools?
Precious Coin Tester ships an update fortnightly, and UPMR Tools every 3 months. Most recently, Precious Coin Tester was updated on November 6, 2026 and UPMR Tools on November 4, 2026.

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