# AerChronT vs KNX Pro Tester

The clearest difference is price: AerChronT at Free against KNX Pro Tester's $17.99. AerChronT also leads on iOS requirement (11.0 vs 26.4). On ads, in-app purchases and device support there is nothing between them.

AerChronT is free to download; KNX Pro Tester costs $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | AerChronT | KNX Pro Tester |
| --- | --- | --- |
| Price | **Free** | $17.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Size | 59 MB | 117 MB |
| Requires iOS | **11.0** | 26.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Aermec S.p.A.](https://appshunter.io/developer/507450365) | [Davide Grandeppieno](https://appshunter.io/developer/908961846) |

## What reviewers say

### AerChronT

[App page](https://appshunter.io/ios/app/aerchront/id6736903573)

**In-app purchases:** none


### KNX Pro Tester

[App page](https://appshunter.io/ios/app/knx-pro-tester/id6751961044)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AerChronT free?

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

### Is KNX Pro Tester free?

KNX Pro Tester costs $17.99, with no in-app purchases.

### Do AerChronT or KNX Pro Tester have ads?

Neither AerChronT nor KNX Pro Tester shows ads.

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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.*