# SoundMeter X vs SmarterNoise Pro

The clearest difference is rating: SmarterNoise Pro at 4.4 against SoundMeter X's 3.6. SmarterNoise Pro also leads on iOS requirement (12.0 vs 18.6). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. SoundMeter X sells 7 in-app purchases, starting at $4.99 per month and SmarterNoise Pro sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

SmarterNoise Pro holds the better App Store score, 4.4 against 3.6. Both are backed by a comparable volume of ratings — 45 and 31 respectively. Written reviews point the same way: 23% of SoundMeter X's written reviews are positive against 29% of SmarterNoise Pro's.

SoundMeter X ships an update every 3 weeks, SmarterNoise Pro monthly. The most recent releases landed on October 15, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | SoundMeter X | SmarterNoise Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (45 ratings)](https://appshunter.io/ios/app/soundmeter-x/id1348050232/reviews) | **[4.4 (31 ratings)](https://appshunter.io/ios/app/smarternoise-pro/id1466745030/reviews)** |
| Number of ratings | **45** | 31 |
| Positive reviews | 22.6% of reviews | **28.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 18 MB | 24 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Faber Acoustical, LLC](https://appshunter.io/developer/284781780) | [Johan Rogard](https://appshunter.io/developer/1384299041) |

## What reviewers say

### SoundMeter X

[App page](https://appshunter.io/ios/app/soundmeter-x/id1348050232)

Transform your device into a professional sound level meter, noise dosimeter, and spectrum analyzer. Log data, calibrate sensitivity, and analyze audio with advanced features. Offers a free trial for premium functionalities.

**Highlights:** Handheld data-logging sound level meter, Data-logging noise dosimeter, Real-time octave spectrum analyzer, Multi-channel data recorder, Stereo signal generator, Sensitivity calibration, Data logging in CSV, TXT, MAT, and PDF

**Features:** Family Sharing, Apple Watch app

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SoundMeter Pro, 1 Month | $4.99 | per month |
| Pro Tool Set, 1 Month | $24.99 | per month |
| SoundMeter Pro, 1 Year | $49.99 | per year |
| Pro Tool Set, 1 Year | $249.99 | per year |
| 14-day Free Trial, SoundMeter Pro | Free | one-time |
| SoundMeter Pro 2026 Upgrade | $29.99 | one-time |
| SoundMeter Pro 2026 | $99.99 | one-time |


### SmarterNoise Pro

[App page](https://appshunter.io/ios/app/smarternoise-pro/id1466745030)

This advanced sound level meter app offers detailed audio analysis with features like frequency spectrum display and data export. It allows for precise sound measurements in both video and audio recording modes, with options for A-, C-, or no weighting.

**Highlights:** Sound level measurement in video/audio modes, Frequency spectrum display, Export measurement data (CSV), Sound level activated audio recording, Calibration tool, Full HD video recording (paid)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Camera upgrade | $0.99 | one-time |
| Frequency spectrum indicator | $1.99 | one-time |
| Video and audio recording | $1.99 | one-time |
| Spectrogram display | $1.99 | one-time |


## Frequently asked questions

### Is SoundMeter X free?

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

### Is SmarterNoise Pro free?

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

### Which has better reviews, SoundMeter X or SmarterNoise Pro?

SmarterNoise Pro is rated higher. SoundMeter X averages 3.6 out of 5 from 45 ratings, while SmarterNoise Pro averages 4.4 from 31 ratings.

### Do SoundMeter X or SmarterNoise Pro have ads?

Neither SoundMeter X nor SmarterNoise Pro shows ads.

### Which is updated more often, SoundMeter X or SmarterNoise Pro?

SoundMeter X ships an update every 3 weeks, and SmarterNoise Pro monthly. Most recently, SoundMeter X was updated on October 15, 2026 and SmarterNoise Pro on September 22, 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.*