# 噪音检测仪 vs 小哈智联

The clearest difference is in-app purchases: 小哈智联 at none against 噪音检测仪's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 噪音检测仪 sells 2 in-app purchases, starting at $3.99 per 7 days. 小哈智联 asks for nothing beyond the download.

噪音检测仪 ships an update every 11 days, 小哈智联 every 6 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | 噪音检测仪 | 小哈智联 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 6 days** |
| Size | 20 MB | 24 MB |
| Requires iOS | 15.1 | **15** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [艇 徐](https://appshunter.io/developer/1720872299) | [Hck Refrigeration Tech.co., Ltd.](https://appshunter.io/developer/1891244900) |

## What reviewers say

### 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 |


### 小哈智联

[App page](https://appshunter.io/ios/app/id6761745469)

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

**In-app purchases:** none


## Frequently asked questions

### Is 噪音检测仪 free?

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

### Is 小哈智联 free?

小哈智联 is free to download, with no in-app purchases.

### Do 噪音检测仪 or 小哈智联 have ads?

Neither 噪音检测仪 nor 小哈智联 shows ads.

### Which is updated more often, 噪音检测仪 or 小哈智联?

噪音检测仪 ships an update every 11 days, and 小哈智联 every 6 days. Most recently, 噪音检测仪 was updated on November 5, 2026 and 小哈智联 on November 9, 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.*