# HetaHAC2.0 vs PSI Audio

The clearest difference is iOS requirement: HetaHAC2.0 at 13.6 against PSI Audio's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HetaHAC2.0 ships an update every 5 months, PSI Audio every 3 months. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | HetaHAC2.0 | PSI Audio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 12 MB | 47 MB |
| Requires iOS | **13.6** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Timpex](https://appshunter.io/developer/1186764661) | [Relec SA](https://appshunter.io/developer/1607080945) |

## What reviewers say

### HetaHAC2.0

[App page](https://appshunter.io/ios/app/hetahac20/id6447245005)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is HetaHAC2.0 free?

HetaHAC2.0 is free to download, with no in-app purchases.

### Is PSI Audio free?

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

### Do HetaHAC2.0 or PSI Audio have ads?

Neither HetaHAC2.0 nor PSI Audio shows ads.

### Which is updated more often, HetaHAC2.0 or PSI Audio?

HetaHAC2.0 ships an update every 5 months, and PSI Audio every 3 months. Most recently, HetaHAC2.0 was updated on October 12, 2026 and PSI Audio on October 6, 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.*