# DecibelMeter vs Decibel：Sound Meter

The clearest difference is ads: DecibelMeter at none against Decibel：Sound Meter's shown. Decibel：Sound Meter's advantage is update cadence (every 11 days vs every 15 months) and rating (3.8 vs 3.5). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. DecibelMeter sells 2 in-app purchases, starting at $1.49 per month and Decibel：Sound Meter sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Decibel：Sound Meter holds the better App Store score, 3.8 against 3.5. Both are backed by a comparable volume of ratings — 2 and 6 respectively.

DecibelMeter ships an update every 15 months, Decibel：Sound Meter every 11 days. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | DecibelMeter | Decibel：Sound Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/decibelmeter-noise-meter-app/id1597236544/reviews) | **[3.8 (6 ratings)](https://appshunter.io/ios/app/decibelsound-meter/id6473146362/reviews)** |
| Number of ratings | 2 | **6** |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | **Every 11 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 5 MB | 33 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | +4 | 9+ |
| Developer | [杏娣 吴](https://appshunter.io/developer/1275821426) | [ZHHUALIUON INC](https://appshunter.io/developer/1686696259) |

## What reviewers say

### DecibelMeter

[App page](https://appshunter.io/ios/app/decibelmeter-noise-meter-app/id1597236544)

This utility app transforms your iPhone into a sound level meter to measure ambient noise. It provides real-time decibel readings, displaying maximum, current, and average values on a gauge. The app offers a simple interface with dark mode support for easy use.

**Highlights:** Sound level meter functionality, Real-time dB measurement, Max, current, and average values, Gauge meter display, Dark mode support, Simple and easy to use

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decibel Meter Pro | $1.49 | per month |
| Decibel Meter Pro | $7.99 | per year |


### Decibel：Sound Meter

[App page](https://appshunter.io/ios/app/decibelsound-meter/id6473146362)

This application offers real-time decibel measurements with high precision. It provides detailed reports, location data, and the ability to share or export audio measurements. Users can also utilize a real-time decibel camera feature.

**Highlights:** Real-time decibel measurement, High precision, Location data, Decibel camera, Measurement reports, Data sharing, Audio data export

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly membership | $3.99 | per 7 days |
| Monthly membership | $4.99 | per month |
| Annual membership | $14.99 | per year |


## Frequently asked questions

### Is DecibelMeter free?

DecibelMeter is free to download, with in-app purchases available.

### Is Decibel：Sound Meter free?

Decibel：Sound Meter is free to download, with in-app purchases available.

### Which has better reviews, DecibelMeter or Decibel：Sound Meter?

Decibel：Sound Meter is rated higher. DecibelMeter averages 3.5 out of 5 from 2 ratings, while Decibel：Sound Meter averages 3.8 from 6 ratings.

### Do DecibelMeter or Decibel：Sound Meter have ads?

Decibel：Sound Meter shows ads; DecibelMeter does not.

### Which is updated more often, DecibelMeter or Decibel：Sound Meter?

DecibelMeter ships an update every 15 months, and Decibel：Sound Meter every 11 days. Most recently, DecibelMeter was updated on November 3, 2026 and Decibel：Sound Meter on November 12, 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.*