# Impulso Pro vs perfectisan device

The clearest difference is price: perfectisan device at Free against Impulso Pro's $2.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

perfectisan device is free to download; Impulso Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Impulso Pro ships an update every 4 months, perfectisan device every 7 months. The most recent releases landed on September 10, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Impulso Pro | perfectisan device |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/impulso-pro/id1217453983/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Paid | — |
| Size | 28 MB | 28 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Artnovion LDA](https://appshunter.io/developer/991324136) | [广文 王](https://appshunter.io/developer/1468077249) |

## What reviewers say

### Impulso Pro

[App page](https://appshunter.io/ios/app/impulso-pro/id1217453983)

Measure and analyze room acoustics using your iPhone. Visualize reverberation time, simulate improvements with acoustic products, and get detailed plots of energy time curves and frequency responses. Compatible with internal or external microphones.

**Highlights:** Room acoustics measurement, Reverberation time visualization, Acoustic product simulation, Energy time curve plots, Frequency response analysis, Real-time microphone input spectral plot

**Features:** Vision Pro support

**In-app purchases:** none


### perfectisan device

[App page](https://appshunter.io/ios/app/perfectisan-device/id6450295041)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Impulso Pro free?

Impulso Pro costs $2.99, with no in-app purchases.

### Is perfectisan device free?

perfectisan device is free to download, with no in-app purchases.

### Do Impulso Pro or perfectisan device have ads?

Neither Impulso Pro nor perfectisan device shows ads.

### Which is updated more often, Impulso Pro or perfectisan device?

Impulso Pro ships an update every 4 months, and perfectisan device every 7 months. Most recently, Impulso Pro was updated on September 10, 2026 and perfectisan device on September 7, 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.*