App Intel

Precious Coin Tester

LiveAUGer kit1 app · 132.1K installsToolsFreeIn-app purchases: $3.49 per itemcom.cointester.cointester

Ping test to detect fake gold & silver coins — verify purity instantly

Alert me★ WatchOpen in Play ↗
Total installs
132,149
exact · Play shows 100,000+
Installs / day
+34
since last crawl
Rating
3.6★
538 ratings · 115 reviews
Released
25 Oct 2019
7y ago
Last update
20 Sept 2026
v2.4.2 · 22d ago
Countries
—
not checked yet

Install history

exact counter from Google Play
132.1K149.1K166.1K183K200K10 Oct12 Oct13 Oct
132.1K149.1K166.1K183K200K10 Oct12 Oct13 Oct

Installs per day · last 90 days

012.52537.55011 Oct12 Oct13 Oct11 Oct: 3412 Oct: 013 Oct: 0

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • No data shared with third parties
  • Collects data Location, Personal info and 3 others
  • Data is encrypted in transit
  • You can ask for your data to be deleted

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

3 in 2 groups
1 Sensitive0 Notable2 Routine

What this app can do with your phone

  • Record sound using your phone's microphone
MicrophoneSensitive1

Access to your phone's microphone to record sound

  • Record sound using your phone's microphonerecord audio · RECORD_AUDIO
OtherRoutine2

Access to miscellaneous device features that don't fit other categories

  • Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
  • Connect to the internet to load content and send datafull network access · INTERNET

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description
Discover the truth about your gold and silver coins with our Precious Coin Tester app: 🎉 Free Access to over 600 Coins - Start testing immediately! 🥇 High-precision for over 3,000 coins with semi-quantitative results. 🔍 Rich database containing over 40,000 coins. 🛠️ Custom Parameters - Customize testing parameters to suit any coin's unique attributes. Not sure if your coin is genuine or a counterfeit? Our app simplifies authenticity checks. Unlike traditional methods that require a fine ear for sound, Precious Coin Tester analyzes the sound from a simple "ping" test and determines if your coin is made from precious metals or cheaper materials. No more uncertainties about your coin's authenticity! How It Works: 1. Place your coin on the tip of your finger near your device’s microphone. 2. Tap the coin with a hard object and let it ring. 3. The app listens and analyzes the sound. Knock again when the ringing stops. What Do the Results* Mean? 0-star: Negative result 1-star: Warning zone. You may need probably double check input parameters. 2-star: Your coin’s sound matches that of a genuine coin. 3-star: High-precision result: metal content error is under 10% for silver and under 5% for gold. Differences between 2 Stars and 3 Stars? 2-star is a qualitative positive result. It is what traditional ping test offers. 3-star is our unique high precision result. It states clearly the metal content expectations. 🤑 Spot a 3-stars false positive and you may win a $100 reward! Details: https://preciouscointester.com/en/3_star_quest/round2/3_star_quest.html - Want more details? Check out our tutorial for a step-by-step guide: https://youtu.be/iWIJ7Ke50-M Please visit our website: https://preciouscointester.com/en/ - Does not work on your device? Please don't hesitate to reach us: [email protected], we will try our best to help you! Your suggestions and comments are highly welcome! * The result is only for informational propose, all decisions made based on this information are at users' own risks. ** Subscription is needed to test all coins in the database, as well as customized coins.

What's new

[Medium] UX improvement

Growing in Tools

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