# Decibel Meter Master vs Noise Decibel Meter

The clearest difference is ads: Decibel Meter Master at none against Noise Decibel Meter's shown. Decibel Meter Master also leads on ratings volume (3.2K vs 46) and update cadence (every 6 months vs every 18 months). Noise Decibel Meter's advantage is review sentiment (75% vs 52%). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.6 for Decibel Meter Master against 4.6 for Noise Decibel Meter. That said, the two scores are not equally well evidenced: Decibel Meter Master has 3.2K ratings behind it against 46, so its average is the more settled of the two. Written reviews are what separate them: 52% of Decibel Meter Master's written reviews are positive against 75% of Noise Decibel Meter's.

Decibel Meter Master ships an update every 6 months, Noise Decibel Meter every 18 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Decibel Meter Master | Noise Decibel Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (3.2K ratings)](https://appshunter.io/ios/app/decibel-meter-master/id1281344281/reviews) | **[4.6 (46 ratings)](https://appshunter.io/ios/app/noise-decibel-meter/id6451040018/reviews)** |
| Number of ratings | **3.2K** | 46 |
| Positive reviews | 51.9% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 18 months |
| Monetization | **Free** | Ad-supported |
| Size | 25 MB | 28 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [燕辉 冯](https://appshunter.io/developer/1264665476) | [标勇 张](https://appshunter.io/developer/1644652564) |

## What reviewers say

### Decibel Meter Master

[App page](https://appshunter.io/ios/app/decibel-meter-master/id1281344281)

This tool transforms your iPhone into a professional sound level meter. It accurately measures ambient noise levels, providing real-time decibel readings directly on your device.

**Highlights:** Measures sound level, Acts as a decibel meter, Uses iPhone as a meter, Measures noise level

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple and easy to use
- 👍 Useful for measuring sound levels
- 🆓 Free app

**What reviewers complain about**

- 🐛 Inaccurate readings
- 🔍 Questionable security with clipboard access
- 🔧 Doesn't work consistently

**Reported bugs**

- Spelling mistakes in the app
- Inconsistent behavior across devices

**Requested features**

- Add calibration option
- Ability to save and review measurements
- Frequency profile display


### Noise Decibel Meter

[App page](https://appshunter.io/ios/app/noise-decibel-meter/id6451040018)

Measure real-time, maximum, and average decibel levels. Record data from each test and keep the screen on for continuous monitoring. Features a simple and intuitive interface.

**Highlights:** Real-time decibel measurement, Maximum decibel tracking, Average decibel calculation, Data recording per test, Screen always on option, Simple interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter Master free?

Decibel Meter Master is free to download, with no in-app purchases.

### Is Noise Decibel Meter free?

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

### Which has better reviews, Decibel Meter Master or Noise Decibel Meter?

Noise Decibel Meter is rated higher. Decibel Meter Master averages 4.6 out of 5 from 3.2K ratings, while Noise Decibel Meter averages 4.6 from 46 ratings.

### Do Decibel Meter Master or Noise Decibel Meter have ads?

Noise Decibel Meter shows ads; Decibel Meter Master does not.

### Which is updated more often, Decibel Meter Master or Noise Decibel Meter?

Decibel Meter Master ships an update every 6 months, and Noise Decibel Meter every 18 months. Most recently, Decibel Meter Master was updated on November 11, 2026 and Noise Decibel Meter on November 3, 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.*