# SmarterNoise Pro vs Audio SA

The clearest difference is review sentiment: Audio SA at 100% against SmarterNoise Pro's 29%. SmarterNoise Pro's advantage is ads (none vs shown) and update cadence (monthly vs every 6 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. SmarterNoise Pro sells 4 one-off in-app purchases and Audio SA sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SmarterNoise Pro ships an update monthly, Audio SA every 6 months. The most recent releases landed on September 7, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | SmarterNoise Pro | Audio SA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (31 ratings)](https://appshunter.io/ios/app/smarternoise-pro/id1466745030/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 28.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 5 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Johan Rogard](https://appshunter.io/developer/1384299041) | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) |

## What reviewers say

### 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 |


### Audio SA

[App page](https://appshunter.io/ios/app/audio-sa/id6444715596)

This app analyzes audio waveforms to create visual voiceprints as TFFT images. It offers extensive customization for FFT analysis, including adjustable ranges, sizes, scales, and window functions. A simple waveform generator is also included for learning purposes.

**Highlights:** TFFT voiceprint image generation, High-resolution image export, Customizable FFT analysis settings, Adjustable audio waveform analysis range, Simple waveform generator (sine, square, noise), Multiple FFT sizes and window functions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads. | $3.99 | one-time |


## Frequently asked questions

### Is SmarterNoise Pro free?

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

### Is Audio SA free?

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

### Do SmarterNoise Pro or Audio SA have ads?

Audio SA shows ads; SmarterNoise Pro does not.

### Which is updated more often, SmarterNoise Pro or Audio SA?

SmarterNoise Pro ships an update monthly, and Audio SA every 6 months. Most recently, SmarterNoise Pro was updated on September 7, 2026 and Audio SA on August 31, 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.*