# Zimi vs PSA Centrii

The clearest difference is update cadence: Zimi at every 5 weeks against PSA Centrii's every 3 months. PSA Centrii's advantage is iOS requirement (13.0 vs 16.0). On price, review sentiment, 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.

Zimi ships an update every 5 weeks, PSA Centrii every 3 months. The most recent releases landed on June 21, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Zimi | PSA Centrii |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.9% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 40 MB | 190 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [ZIMI INNOVATIONS PTY LTD](https://appshunter.io/developer/1434488883) | [PSA Products Pty Ltd](https://appshunter.io/developer/1514298728) |

## What reviewers say

### Zimi

[App page](https://appshunter.io/ios/app/zimi/id1434488884)

Control your smart home devices like lighting, fans, and appliances with this app. Schedule actions, set timers, monitor energy usage, and integrate with voice assistants for a convenient, hands-free experience.

**Highlights:** Control lighting, fans, and appliances, Voice assistant integration, Daily scheduling, Auto-off timers, Energy monitoring, Device pairing

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Zimi free?

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

### Is PSA Centrii free?

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

### Do Zimi or PSA Centrii have ads?

Neither Zimi nor PSA Centrii shows ads.

### Which is updated more often, Zimi or PSA Centrii?

Zimi ships an update every 5 weeks, and PSA Centrii every 3 months. Most recently, Zimi was updated on June 21, 2026 and PSA Centrii on September 15, 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.*