# ZGuest vs KNX V2

The clearest difference is update cadence: KNX V2 at every 4 months against ZGuest's every 31 months. ZGuest's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

ZGuest ships an update every 31 months, KNX V2 every 4 months. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | ZGuest | KNX V2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 4 months** |
| Size | 24 MB | 56 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zennio](https://appshunter.io/developer/665852768) | [Feller AG](https://appshunter.io/developer/525095492) |

## What reviewers say

### ZGuest

[App page](https://appshunter.io/ios/app/zguest/id1224506043)

**In-app purchases:** none


### KNX V2

[App page](https://appshunter.io/ios/app/knx-v2/id1343197447)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZGuest free?

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

### Is KNX V2 free?

KNX V2 is free to download, with no in-app purchases.

### Do ZGuest or KNX V2 have ads?

Neither ZGuest nor KNX V2 shows ads.

### Which is updated more often, ZGuest or KNX V2?

ZGuest ships an update every 31 months, and KNX V2 every 4 months. Most recently, ZGuest was updated on October 26, 2026 and KNX V2 on October 12, 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.*