# 凯力朗智能 vs Noise

The clearest difference is rating: Noise at 4.4 against 凯力朗智能's 1.0. Noise also leads on ratings volume (54 vs 1). 凯力朗智能's advantage is iOS requirement (8.0 vs 13.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Noise holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Noise has 54 ratings behind it against 1, so its average is the more settled of the two.

凯力朗智能 ships an update every 5 months, Noise every 10 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | 凯力朗智能 | Noise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/id1448073060/reviews) | **[4.4 (54 ratings)](https://appshunter.io/ios/app/noise/id1462215395/reviews)** |
| Number of ratings | 1 | **54** |
| Positive reviews | — | 72.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 10 months |
| Monetization | — | Free |
| Size | 49 MB | 3 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Wenzhou Yunjia Network Technology Co., Ltd.](https://appshunter.io/developer/1448073059) | [Apple](https://appshunter.io/developer/284417353) |

## What reviewers say

### 凯力朗智能

[App page](https://appshunter.io/ios/app/id1448073060)

**Features:** macOS Compatibility

**In-app purchases:** none


### Noise

[App page](https://appshunter.io/ios/app/noise/id1462215395)

This app monitors your environment's decibel levels using your Apple Watch. It provides real-time feedback on sound intensity, alerting you to potentially harmful noise exposure and noting when sound levels decrease with compatible headphones.

**Highlights:** Real-time decibel level monitoring, Hearing health alerts, Watch face complications, Sound level reduction notifications with AirPods, Periodic sound sampling

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is 凯力朗智能 free?

凯力朗智能 is free to download, with no in-app purchases.

### Is Noise free?

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

### Which has better reviews, 凯力朗智能 or Noise?

Noise is rated higher. 凯力朗智能 averages 1.0 out of 5 from 1 ratings, while Noise averages 4.4 from 54 ratings.

### Do 凯力朗智能 or Noise have ads?

Neither 凯力朗智能 nor Noise shows ads.

### Which is updated more often, 凯力朗智能 or Noise?

凯力朗智能 ships an update every 5 months, and Noise every 10 months. Most recently, 凯力朗智能 was updated on October 24, 2026 and Noise on October 24, 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.*