# 慧音FM vs Metal Detector Simulator Prank

The clearest difference is rating: 慧音FM at 5.0 against Metal Detector Simulator Prank's 4.3. 慧音FM also leads on ads (none vs shown) and update cadence (every 2 months vs every 4 months). Metal Detector Simulator Prank's advantage is ratings volume (59 vs 2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

慧音FM holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Metal Detector Simulator Prank has 59 ratings behind it against 2, so its average is the more settled of the two.

慧音FM ships an update every 2 months, Metal Detector Simulator Prank every 4 months. The most recent releases landed on June 1, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 慧音FM | Metal Detector Simulator Prank |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fm/id1255375802/reviews)** | [4.3 (59 ratings)](https://appshunter.io/ios/app/metal-detector-simulator-prank/id1286378592/reviews) |
| Number of ratings | 2 | **59** |
| Positive reviews | — | 58.8% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Free** | Ad-supported |
| Size | 61 MB | 25 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [亚楠 张](https://appshunter.io/developer/1134909875) | [Denis Batishchev](https://appshunter.io/developer/1179896396) |

## What reviewers say

### 慧音FM

[App page](https://appshunter.io/ios/app/fm/id1255375802)

This platform shares audio lectures and audiobooks focused on positive energy and wisdom. It offers online playback and downloads of content, with features like playback history and download management.

**Highlights:** Online playback and download, Content sharing, Playback history, Download management, Resume playback, Mobile network playback/download

**Features:** macOS Compatibility

**In-app purchases:** none


### Metal Detector Simulator Prank

[App page](https://appshunter.io/ios/app/metal-detector-simulator-prank/id1286378592)

Transform your phone into a simulated metal detector for fun. Prank friends by pretending to find metal objects. Adjust signal strength with finger movements for interactive play.

**Highlights:** Simulated metal detection, Prank your friends, Adjustable signal strength, Interactive finger controls, Improvise and play games

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 慧音FM free?

慧音FM is free to download, with no in-app purchases.

### Is Metal Detector Simulator Prank free?

Metal Detector Simulator Prank is free to download, with no in-app purchases.

### Which has better reviews, 慧音FM or Metal Detector Simulator Prank?

慧音FM is rated higher. 慧音FM averages 5.0 out of 5 from 2 ratings, while Metal Detector Simulator Prank averages 4.3 from 59 ratings.

### Do 慧音FM or Metal Detector Simulator Prank have ads?

Metal Detector Simulator Prank shows ads; 慧音FM does not.

### Which is updated more often, 慧音FM or Metal Detector Simulator Prank?

慧音FM ships an update every 2 months, and Metal Detector Simulator Prank every 4 months. Most recently, 慧音FM was updated on June 1, 2026 and Metal Detector Simulator Prank on September 17, 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.*