# SmarterNoise Pro vs DeciTrack

The clearest difference is ads: SmarterNoise Pro at none against DeciTrack's shown. SmarterNoise Pro also leads on iOS requirement (12.0 vs 17.0). DeciTrack's advantage is update cadence (every 9 days vs monthly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. SmarterNoise Pro sells 4 one-off in-app purchases and DeciTrack sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

SmarterNoise Pro ships an update monthly, DeciTrack every 9 days. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SmarterNoise Pro | DeciTrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (33 ratings)](https://appshunter.io/ios/app/smarternoise-pro/id1466745030/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 12 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Johan Rogard](https://appshunter.io/developer/1384299041) | [RIVERSHIP](https://appshunter.io/developer/6780804499) |

## 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 |


### DeciTrack

[App page](https://appshunter.io/ios/app/decitrack-decibel-meter-and-log/id6782025348)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DeciTrack Pro (Monthly) | $3.99 | per month |
| DeciTrack Pro (Yearly) | $19.99 | per year |


## Frequently asked questions

### Is SmarterNoise Pro free?

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

### Is DeciTrack free?

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

### Do SmarterNoise Pro or DeciTrack have ads?

DeciTrack shows ads; SmarterNoise Pro does not.

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

SmarterNoise Pro ships an update monthly, and DeciTrack every 9 days. Most recently, SmarterNoise Pro was updated on October 24, 2026 and DeciTrack on October 13, 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.*