# PSI Audio vs Vector

The clearest difference is in-app purchases: PSI Audio at none against Vector's 3. PSI Audio also leads on iOS requirement (14.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Vector sells 3 one-off in-app purchases. PSI Audio asks for nothing beyond the download.

PSI Audio ships an update every 2 months, Vector every 6 weeks. The most recent releases landed on June 4, 2026 and July 25, 2026 respectively.

## The numbers

| Metric | PSI Audio | Vector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/psi-audio/id1607080943/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 26 MB | 4 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Relec SA](https://appshunter.io/developer/1607080945) | [Flamingo Software](https://appshunter.io/developer/1788950200) |

## 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


### Vector

[App page](https://appshunter.io/ios/app/vector-3d-mapping-for-lasers/id6740210522)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Measure | $24.99 | one-time |
| File Export | $24.99 | one-time |
| Full Access | $50.00 | one-time |


## Frequently asked questions

### Is PSI Audio free?

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

### Is Vector free?

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

### Do PSI Audio or Vector have ads?

Neither PSI Audio nor Vector shows ads.

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

PSI Audio ships an update every 2 months, and Vector every 6 weeks. Most recently, PSI Audio was updated on June 4, 2026 and Vector on July 25, 2026.

---

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