# SmarterNoise Pro vs Spectrolite

The clearest difference is review sentiment: Spectrolite at 83% against SmarterNoise Pro's 29%. Spectrolite also leads on rating (4.8 vs 4.4). SmarterNoise Pro's advantage is update cadence (monthly vs every 8 months) and iOS requirement (12.0 vs 15.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Spectrolite holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 31 and 51 respectively. Written reviews point the same way: 29% of SmarterNoise Pro's written reviews are positive against 83% of Spectrolite's.

SmarterNoise Pro ships an update monthly, Spectrolite every 8 months. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | SmarterNoise Pro | Spectrolite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (31 ratings)](https://appshunter.io/ios/app/smarternoise-pro/id1466745030/reviews) | **[4.8 (51 ratings)](https://appshunter.io/ios/app/spectrolite/id1480240180/reviews)** |
| Number of ratings | 31 | **51** |
| Positive reviews | 28.6% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 8 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 1 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) | [Waxing Wave](https://appshunter.io/developer/392942046) |

## 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 |


### Spectrolite

[App page](https://appshunter.io/ios/app/spectrolite/id1480240180)

This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.

**Highlights:** Real-time spectrogram visualization, Constant-Q, linear, and mel frequency scales, Full human hearing frequency range, Intuitive touch panning and zooming, Adjustable gain, Q, and other parameters, Pro version: grids, scales, spectrum view, tap-to-measure

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | one-time |


## Frequently asked questions

### Is SmarterNoise Pro free?

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

### Is Spectrolite free?

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

### Which has better reviews, SmarterNoise Pro or Spectrolite?

Spectrolite is rated higher. SmarterNoise Pro averages 4.4 out of 5 from 31 ratings, while Spectrolite averages 4.8 from 51 ratings.

### Do SmarterNoise Pro or Spectrolite have ads?

Neither SmarterNoise Pro nor Spectrolite shows ads.

### Which is updated more often, SmarterNoise Pro or Spectrolite?

SmarterNoise Pro ships an update monthly, and Spectrolite every 8 months. Most recently, SmarterNoise Pro was updated on September 22, 2026 and Spectrolite on September 23, 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.*