# PSI Audio vs amscan

The clearest difference is rating: PSI Audio at 5.0 against amscan's 4.0. PSI Audio also leads on in-app purchases (none vs 2) and iOS requirement (14.0 vs 18.6). amscan's advantage is update cadence (every 11 days vs every 2 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. amscan sells 2 one-off in-app purchases. PSI Audio asks for nothing beyond the download.

PSI Audio holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

PSI Audio ships an update every 2 months, amscan every 11 days. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PSI Audio | amscan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/psi-audio/id1607080943/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/amscan/id6749589715/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 26 MB | 20 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Relec SA](https://appshunter.io/developer/1607080945) | [Dariush Majidi](https://appshunter.io/developer/1740614809) |

## What reviewers say

### PSI Audio

[App page](https://appshunter.io/ios/app/psi-audio/id1607080943)

Remotely control your AVAA active system for low-frequency room mode absorption. Access device information, update firmware, and learn about acoustics and room modes.

**Highlights:** Remote AVAA system control, Device information access (serial, firmware, SSID), Firmware updates, Acoustics and room mode information, Optimized absorption features

**Features:** macOS Compatibility

**In-app purchases:** none


### amscan

[App page](https://appshunter.io/ios/app/amscan/id6749589715)

Visualize room modes in 3D using LiDAR scanning. Capture room geometry to instantly calculate acoustic modes, aiding in sound design and optimization for audiophiles and professionals. Offers free basic calculations with an in-app purchase for advanced modes.

**Highlights:** LiDAR room scanning, 3D room mode visualization, Automatic 3D model creation, Augmented Reality mode visualization, Basic acoustic data (RT60, Schroeder Freq, Volume), Unlimited room scanning

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simulation Geometry | $3.99 | one-time |
| Additional Room Modes | $6.99 | one-time |


## Frequently asked questions

### Is PSI Audio free?

PSI Audio is free to download, with no in-app purchases.

### Is amscan free?

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

### Which has better reviews, PSI Audio or amscan?

PSI Audio is rated higher. PSI Audio averages 5.0 out of 5 from 1 ratings, while amscan averages 4.0 from 2 ratings.

### Do PSI Audio or amscan have ads?

Neither PSI Audio nor amscan shows ads.

### Which is updated more often, PSI Audio or amscan?

PSI Audio ships an update every 2 months, and amscan every 11 days. Most recently, PSI Audio was updated on October 5, 2026 and amscan on October 9, 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.*