# Coin Tester. vs Linking Drones

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.

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.

Coin Tester. ships an update monthly, Linking Drones every 4 months. The most recent releases landed on October 17, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Coin Tester. | Linking Drones |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (121 ratings)](https://appshunter.io/ios/app/coin-tester/id6448944215/reviews)** | — |
| Number of ratings | **121** | — |
| Positive reviews | 64.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Subscription | — |
| Size | 95 MB | 65 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Growth & Value](https://appshunter.io/developer/1687037796) | [Linking Drones](https://appshunter.io/developer/1774205330) |

## What reviewers say

### Coin Tester.

[App page](https://appshunter.io/ios/app/coin-tester/id6448944215)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $9.00 | per month |
| Annual Access | $72.00 | per year |
| 7-Day Access | $19.00 | one-time |

**What reviewers like**

- 👍 Intuitive and easy to use
- ✅ Accurate coin authenticity verification
- 🚀 Fast and efficient operation
- 💡 Constantly developing and updating
- ✨ Useful for checking grandfather's collection

**What reviewers complain about**

- 💰 App requires payment for features
- ❓ No mention of paid access upfront
- 💳 Monthly subscription for ping test
- 📉 Limited database of coins
- ❌ Not accurate for all coin types

**Reported bugs**

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

**Requested features**

- Expand coin database
- Improve accuracy of tests
- Clarify pricing and subscription model upfront


### Linking Drones

[App page](https://appshunter.io/ios/app/linking-drones/id6736975929)

**In-app purchases:** none


## Frequently asked 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 17, 2026 and Linking Drones on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*