# Decibel：Sound Meter vs 噪音检测仪

The clearest difference is rating: 噪音检测仪 at 5.0 against Decibel：Sound Meter's 3.8. 噪音检测仪 also leads on ads (none vs shown). Decibel：Sound Meter's advantage is ratings volume (6 vs 1). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Decibel：Sound Meter sells 3 in-app purchases, starting at $3.99 per 7 days and 噪音检测仪 sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

噪音检测仪 holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Decibel：Sound Meter has 6 ratings behind it against 1, so its average is the more settled of the two.

Decibel：Sound Meter ships an update every 11 days, 噪音检测仪 weekly. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Decibel：Sound Meter | 噪音检测仪 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (6 ratings)](https://appshunter.io/ios/app/decibelsound-meter/id6473146362/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6661030420/reviews)** |
| Number of ratings | **6** | 1 |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 33 MB | 10 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [ZHHUALIUON INC](https://appshunter.io/developer/1686696259) | [塔西甫拉提 达提卡依木](https://appshunter.io/developer/1735843889) |

## What reviewers say

### Decibel：Sound Meter

[App page](https://appshunter.io/ios/app/decibelsound-meter/id6473146362)

This application offers real-time decibel measurements with high precision. It provides detailed reports, location data, and the ability to share or export audio measurements. Users can also utilize a real-time decibel camera feature.

**Highlights:** Real-time decibel measurement, High precision, Location data, Decibel camera, Measurement reports, Data sharing, Audio data export

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly membership | $3.99 | per 7 days |
| Monthly membership | $4.99 | per month |
| Annual membership | $14.99 | per year |


### 噪音检测仪

[App page](https://appshunter.io/ios/app/id6661030420)

This tool accurately measures and displays current noise levels in decibels. It tracks historical data, provides smart noise ratings based on international standards, and is useful for various environments like work, home, and outdoors. Protect your hearing and improve your environment.

**Highlights:** Instant decibel monitoring, Historical data logging, Smart noise level rating, Wide range of applicable scenarios, Professional-grade accuracy

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 噪音检测仪周会员 | $3.99 | per 7 days |
| 噪音检测仪年会员 | $12.99 | per year |


## Frequently asked questions

### Is Decibel：Sound Meter free?

Decibel：Sound Meter is free to download, with in-app purchases available.

### Is 噪音检测仪 free?

噪音检测仪 is free to download, with in-app purchases available.

### Which has better reviews, Decibel：Sound Meter or 噪音检测仪?

噪音检测仪 is rated higher. Decibel：Sound Meter averages 3.8 out of 5 from 6 ratings, while 噪音检测仪 averages 5.0 from 1 ratings.

### Do Decibel：Sound Meter or 噪音检测仪 have ads?

Decibel：Sound Meter shows ads; 噪音检测仪 does not.

### Which is updated more often, Decibel：Sound Meter or 噪音检测仪?

Decibel：Sound Meter ships an update every 11 days, and 噪音检测仪 weekly. Most recently, Decibel：Sound Meter was updated on November 12, 2026 and 噪音检测仪 on November 8, 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.*