# Metal Detector & Sound Meter vs Mental X Basic

The clearest difference is in-app purchases: Metal Detector & Sound Meter at none against Mental X Basic's 1. Metal Detector & Sound Meter also leads on iOS requirement (12.0 vs 15.5). Mental X Basic's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Mental X Basic sells 1 in-app purchase, starting at $3.99 per month. Metal Detector & Sound Meter asks for nothing beyond the download.

Metal Detector & Sound Meter ships an update every 2 months, Mental X Basic every 3 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Metal Detector & Sound Meter | Mental X Basic |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 39 MB | 77 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sarfraz Ahmed](https://appshunter.io/developer/1665901838) | [Hayri Demirpence](https://appshunter.io/developer/1856505527) |

## What reviewers say

### Metal Detector & Sound Meter

[App page](https://appshunter.io/ios/app/metal-detector-and-sound-meter/id6478269346)

This app helps you monitor your surroundings by detecting radiation levels and measuring ambient sound. It offers real-time readings, customizable thresholds, and alerts for potential hazards. The intuitive interface makes it easy to stay informed about environmental safety.

**Highlights:** Radiation detection, Sound meter measurements, Customizable thresholds, Real-time readings, Offline functionality, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Mental X Basic

[App page](https://appshunter.io/ios/app/mental-x-basic/id6755810498)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mental X Pro | $3.99 | per month |


## Frequently asked questions

### Is Metal Detector & Sound Meter free?

Metal Detector & Sound Meter is free to download, with no in-app purchases.

### Is Mental X Basic free?

Mental X Basic is free to download, with in-app purchases available.

### Do Metal Detector & Sound Meter or Mental X Basic have ads?

Metal Detector & Sound Meter shows ads; Mental X Basic does not.

### Which is updated more often, Metal Detector & Sound Meter or Mental X Basic?

Metal Detector & Sound Meter ships an update every 2 months, and Mental X Basic every 3 weeks. Most recently, Metal Detector & Sound Meter was updated on November 4, 2026 and Mental X Basic on October 30, 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.*