# PSA Centrii vs ZoneTouch 3

The clearest difference is review sentiment: PSA Centrii at 33% against ZoneTouch 3's 0%. PSA Centrii also leads on update cadence (every 3 months vs every 18 months) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

PSA Centrii ships an update every 3 months, ZoneTouch 3 every 18 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | PSA Centrii | ZoneTouch 3 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 18 months |
| Monetization | Free | Free |
| Size | 190 MB | 4 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [PSA Products Pty Ltd](https://appshunter.io/developer/1514298728) | [Polyaire](https://appshunter.io/developer/514556247) |

## What reviewers say

### PSA Centrii

[App page](https://appshunter.io/ios/app/psa-centrii/id1514298729)

This app provides safety and security for families by allowing remote control and communication with IoT-enabled devices. It enables users to manage multiple smart devices, automate interactions, share access with family, and receive real-time alerts.

**Highlights:** Remote device communication and control, Manage multiple IoT devices, Smart automation control, Share devices with family, Real-time alerts, Easy device pairing

**Features:** macOS Compatibility

**In-app purchases:** none


### ZoneTouch 3

[App page](https://appshunter.io/ios/app/zonetouch-3/id1551903905)

Control your home's climate remotely. Adjust airflow and conditioned air volume in individual zones directly from your smart device.

**Highlights:** Remote airflow control, Adjust conditioned air volume, Zone-specific control, Smart device operation

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PSA Centrii free?

PSA Centrii is free to download, with no in-app purchases.

### Is ZoneTouch 3 free?

ZoneTouch 3 is free to download, with no in-app purchases.

### Do PSA Centrii or ZoneTouch 3 have ads?

Neither PSA Centrii nor ZoneTouch 3 shows ads.

### Which is updated more often, PSA Centrii or ZoneTouch 3?

PSA Centrii ships an update every 3 months, and ZoneTouch 3 every 18 months. Most recently, PSA Centrii was updated on November 3, 2026 and ZoneTouch 3 on November 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.*