# Decibel Sound Meter vs CodeBrew

The clearest difference is review sentiment: CodeBrew at 69% against Decibel Sound Meter's 0%. CodeBrew also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Decibel Sound Meter's advantage is rating (4.8 vs 3.8). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Decibel Sound Meter sells 3 in-app purchases, starting at $0.99 per 7 days and CodeBrew sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Decibel Sound Meter holds the better App Store score, 4.8 against 3.8. Both are backed by a comparable volume of ratings — 4 and 9 respectively. Written reviews complicate that: 0% of Decibel Sound Meter's written reviews are positive against 69% of CodeBrew's, so the app with the better star average is not the one people write more warmly about.

Decibel Sound Meter ships an update every 4 months, CodeBrew every 3 months. The most recent releases landed on September 18, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Decibel Sound Meter | CodeBrew |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/decibel-sound-meter-db-spl/id1501310833/reviews)** | [3.8 (9 ratings)](https://appshunter.io/ios/app/codebrew-ide-for-java/id6475267297/reviews) |
| Number of ratings | 4 | **9** |
| Positive reviews | 0.0% of reviews | **68.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 379 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Grima Hdez](https://appshunter.io/developer/1741481582) | [Julius Naeumann](https://appshunter.io/developer/1402019766) |

## What reviewers say

### Decibel Sound Meter

[App page](https://appshunter.io/ios/app/decibel-sound-meter-db-spl/id1501310833)

Measure environmental noise levels and display decibel values in various formats. This smart sound meter app features a tidy graphic design and provides real-time noise detection using your mobile microphone. It offers clear visualizations of sound levels and includes helpful information about decibel measurements.

**Highlights:** Measures environmental noise decibel values, Displays dB values in various forms, Tidy graphic design with high frame rate, Uses mobile microphone for ambient noise measurement, Shows current, min, average, and max decibel values, Displays decibel change chart, Auto decibel value calibration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decibel PRO week sub | $0.99 | per 7 days |
| Decibel PRO mounth sub | $1.99 | per month |
| Decibel PRO year sub | $17.99 | per year |


### CodeBrew

[App page](https://appshunter.io/ios/app/codebrew-ide-for-java/id6475267297)

This mobile application provides a full Java Integrated Development Environment (IDE) for iOS devices. It features intelligent code completion, live issue highlighting, and includes the Java 21 JDK for offline use. Users can also explore game development with a custom graphics framework and learn from example projects.

**Highlights:** Java 21 JDK included, Offline coding support, Intelligent code completion, Live issue highlighting, Custom graphics framework for games, Example projects library

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CodeBrew Pro | $17.99 | one-time |


## Frequently asked questions

### Is Decibel Sound Meter free?

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

### Is CodeBrew free?

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

### Which has better reviews, Decibel Sound Meter or CodeBrew?

Decibel Sound Meter is rated higher. Decibel Sound Meter averages 4.8 out of 5 from 4 ratings, while CodeBrew averages 3.8 from 9 ratings.

### Do Decibel Sound Meter or CodeBrew have ads?

Decibel Sound Meter shows ads; CodeBrew does not.

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

Decibel Sound Meter ships an update every 4 months, and CodeBrew every 3 months. Most recently, Decibel Sound Meter was updated on September 18, 2026 and CodeBrew on July 6, 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.*