# SmarterNoise Pro vs Portaria Viptech

The clearest difference is in-app purchases: Portaria Viptech at none against SmarterNoise Pro's 4. Portaria Viptech also leads on device support (4 vs 2). SmarterNoise Pro's advantage is iOS requirement (12.0 vs 15.5). On price, update cadence and ads there is nothing between them.

Both are free to download. SmarterNoise Pro sells 4 one-off in-app purchases. Portaria Viptech asks for nothing beyond the download.

SmarterNoise Pro ships an update monthly, Portaria Viptech every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SmarterNoise Pro | Portaria Viptech |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 157 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Johan Rogard](https://appshunter.io/developer/1384299041) | [VipTech](https://appshunter.io/developer/1270410041) |

## 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 |


### Portaria Viptech

[App page](https://appshunter.io/ios/app/portaria-viptech/id1596358969)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SmarterNoise Pro free?

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

### Is Portaria Viptech free?

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

### Do SmarterNoise Pro or Portaria Viptech have ads?

Neither SmarterNoise Pro nor Portaria Viptech shows ads.

### Which is updated more often, SmarterNoise Pro or Portaria Viptech?

SmarterNoise Pro ships an update monthly, and Portaria Viptech every 3 weeks. Most recently, SmarterNoise Pro was updated on October 24, 2026 and Portaria Viptech on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*