# Decibel Meter vs CodeBrew

The clearest difference is review sentiment: CodeBrew at 65% against Decibel Meter's 0%. CodeBrew also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Decibel Meter's advantage is rating (4.8 vs 3.7). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Decibel Meter sells 4 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 Meter holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 4 and 10 respectively. Written reviews complicate that: 0% of Decibel Meter's written reviews are positive against 65% of CodeBrew's, so the app with the better star average is not the one people write more warmly about.

Decibel Meter ships an update every 2 months, CodeBrew every 3 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Decibel Meter | CodeBrew |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/decibel-meter-noise-level-db/id1501310833/reviews)** | [3.7 (10 ratings)](https://appshunter.io/ios/app/codebrew-ide-for-java/id6475267297/reviews) |
| Number of ratings | 4 | **10** |
| Positive reviews | 0.0% of reviews | **64.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 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 Meter

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

Measure sound levels with your device's microphone. Track noise over time, set alerts, and log recordings with notes and locations. Export reports for personal records.

**Highlights:** Live dB measurement with gauge and chart, Frequency weighting (A, C, Z), Noise dose calculation (NIOSH, OSHA), Save recordings with notes and location, Noise alerts and hearing safety guide, Exportable PDF, CSV, and image reports

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decibel Sound Meter Pro Weekly | $0.99 | per 7 days |
| Pro Monthly | $1.99 | per month |
| Decibel Sound Meter Pro Yearly | $4.99 | per year |
| Decibel Pro Lifetime | $9.99 | one-time |


### 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, Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is Decibel Meter free?

Decibel 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 Meter or CodeBrew?

Decibel Meter is rated higher. Decibel Meter averages 4.8 out of 5 from 4 ratings, while CodeBrew averages 3.7 from 10 ratings.

### Do Decibel Meter or CodeBrew have ads?

Decibel Meter shows ads; CodeBrew does not.

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

Decibel Meter ships an update every 2 months, and CodeBrew every 3 months. Most recently, Decibel Meter was updated on October 30, 2026 and CodeBrew on October 25, 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.*