# PSI Audio vs amscan

The clearest difference is review sentiment: amscan at 50% against PSI Audio's 0%. amscan also leads on update cadence (every 11 days vs every 3 months). PSI Audio's advantage is in-app purchases (none vs 2) and iOS requirement (15.0 vs 18.6). On price, 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 ships an update every 3 months, amscan every 11 days. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | PSI Audio | amscan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/amscan/id6749589715/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 47 MB | 20 MB |
| Requires iOS | **15.0** | 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-avaa-controller/id6651839273)

Control PSI Audio AVAA units with this official remote app. Access device information, update firmware, and learn about room acoustics. Optimize your low-frequency sound absorption.

**Highlights:** Remote control for AVAA units, Access device information (serial number, firmware), Firmware updates, Information on acoustics and room modes, Optimized absorption settings

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

**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.

### 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 3 months, and amscan every 11 days. Most recently, PSI Audio was updated on September 18, 2026 and amscan 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.*