# Decibel vs Decibel Meter Master

The clearest difference is rating: Decibel Meter Master at 4.6 against Decibel's 3.5. Decibel Meter Master also leads on update cadence (every 6 months vs every 18 months) and ratings volume (3.2K vs 475). On price, review sentiment, 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.

Decibel Meter Master holds the better App Store score, 4.6 against 3.5. That said, the two scores are not equally well evidenced: Decibel Meter Master has 3.2K ratings behind it against 475, so its average is the more settled of the two. Written reviews point the same way: 45% of Decibel's written reviews are positive against 52% of Decibel Meter Master's.

Decibel ships an update every 18 months, Decibel Meter Master every 6 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | Decibel | Decibel Meter Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (475 ratings)](https://appshunter.io/ios/app/decibel-accurate-db-meter/id1130936133/reviews) | **[4.6 (3.2K ratings)](https://appshunter.io/ios/app/decibel-meter-master/id1281344281/reviews)** |
| Number of ratings | 475 | **3.2K** |
| Positive reviews | 45.3% of reviews | **51.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 6 months** |
| Monetization | Free | Free |
| Size | 4 MB | 25 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [祥祎 刘](https://appshunter.io/developer/1071522659) | [燕辉 冯](https://appshunter.io/developer/1264665476) |

## What reviewers say

### Decibel

[App page](https://appshunter.io/ios/app/decibel-accurate-db-meter/id1130936133)

Transform your device into a professional sound meter to accurately measure ambient noise levels. Understand how loud your surroundings are, from quiet rooms to loud events, and learn about potential hearing risks.

**Highlights:** Accurate sound pressure level measurement, Measures decibels (dB), Provides real-time sound intensity readings, Useful for understanding noise pollution, Helps identify potential hearing hazards

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and intuitive
- 💡 Useful for measuring noise levels
- 🚀 Easy to use
- 🔍 Provides instant and average readings

**What reviewers complain about**

- 🐛 Inaccurate readings
- 🔍 Overly sensitive microphone
- 🔍 Inconsistent measurements
- 🔍 Readings too high compared to other apps

**Reported bugs**

- App shows high decibel readings even in silent environments
- Microphone issues causing inaccurate measurements
- App freezes or stops working

**Requested features**

- Ability to calibrate the app
- Option to record and save measurement history
- Add peak hold feature
- Improve spelling and grammar


### 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


## Frequently asked questions

### Is Decibel free?

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

### Is Decibel Meter Master free?

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

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

Decibel Meter Master is rated higher. Decibel averages 3.5 out of 5 from 475 ratings, while Decibel Meter Master averages 4.6 from 3.2K ratings.

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

Neither Decibel nor Decibel Meter Master shows ads.

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

Decibel ships an update every 18 months, and Decibel Meter Master every 6 months. Most recently, Decibel was updated on October 29, 2026 and Decibel Meter Master on October 29, 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.*