# 分贝仪 vs 噪音检测仪

The clearest difference is ads: 噪音检测仪 at none against 分贝仪's shown. 分贝仪's advantage is update cadence (every 4 days vs every 11 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. 分贝仪 sells 1 in-app purchase, starting at $2.99 per month 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.

分贝仪 ships an update every 4 days, 噪音检测仪 every 11 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 分贝仪 | 噪音检测仪 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 11 days |
| Size | 19 MB | 20 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [魁鹏 宋](https://appshunter.io/developer/977980685) | [艇 徐](https://appshunter.io/developer/1720872299) |

## What reviewers say

### 分贝仪

[App page](https://appshunter.io/ios/app/id6743854960)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $2.99 | per month |


### 噪音检测仪

[App page](https://appshunter.io/ios/app/ai/id6748600963)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $3.99 | per 7 days |
| 年会员 | $12.99 | per year |


## Frequently asked questions

### Is 分贝仪 free?

分贝仪 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.

### Do 分贝仪 or 噪音检测仪 have ads?

分贝仪 shows ads; 噪音检测仪 does not.

### Which is updated more often, 分贝仪 or 噪音检测仪?

分贝仪 ships an update every 4 days, and 噪音检测仪 every 11 days. Most recently, 分贝仪 was updated on October 28, 2026 and 噪音检测仪 on October 25, 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.*