# mySoundAnalyzer vs IsoDecibel

The clearest difference is in-app purchases: IsoDecibel at none against mySoundAnalyzer's 1. IsoDecibel also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. mySoundAnalyzer sells 1 in-app purchase, starting at $3.99 per 7 days. IsoDecibel asks for nothing beyond the download.

mySoundAnalyzer ships an update every 11 months, IsoDecibel every 9 months. The most recent releases landed on October 25, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | mySoundAnalyzer | IsoDecibel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/isodecibel/id1670738247/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Every 9 months** |
| Monetization | — | Free |
| Size | 44 MB | 10 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [iDevver Apps Limited](https://appshunter.io/developer/453983205) | [Emil Aerenlund](https://appshunter.io/developer/1645551094) |

## What reviewers say

### mySoundAnalyzer

[App page](https://appshunter.io/ios/app/mysoundanalyzer-decibel-tool/id1614621283)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly Subscription | $3.99 | per 7 days |


### IsoDecibel

[App page](https://appshunter.io/ios/app/isodecibel/id1670738247)

This tool simplifies decibel calculations, allowing you to add, subtract, and average sound source levels. It's designed for ease of use and to provide an educational insight into acoustics.

**Highlights:** Add independent source levels, Subtract independent source levels, Calculate average of source levels, Sum up to 20 source levels, Educational insight into acoustics

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is mySoundAnalyzer free?

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

### Is IsoDecibel free?

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

### Do mySoundAnalyzer or IsoDecibel have ads?

mySoundAnalyzer shows ads; IsoDecibel does not.

### Which is updated more often, mySoundAnalyzer or IsoDecibel?

mySoundAnalyzer ships an update every 11 months, and IsoDecibel every 9 months. Most recently, mySoundAnalyzer was updated on October 25, 2026 and IsoDecibel 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.*