# airTool vs myCoolblue

The clearest difference is device support: airTool at 3 against myCoolblue's 1. myCoolblue's advantage is iOS requirement (8.0 vs 15.6). 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.

airTool ships an update every 4 months, myCoolblue every 3 months. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | airTool | myCoolblue |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 17 MB | 201 MB |
| Requires iOS | 15.6 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [maennchen1.de <Roger Rehnelt>](https://appshunter.io/developer/460800416) | [Condair GmbH](https://appshunter.io/developer/903871077) |

## What reviewers say

### airTool

[App page](https://appshunter.io/ios/app/airtool/id463173545)

**Features:** macOS Compatibility

**In-app purchases:** none


### myCoolblue

[App page](https://appshunter.io/ios/app/mycoolblue/id1129809444)

This simulation tool helps estimate annual energy needs for cooling and dehumidifying ventilation system supply air. It allows for early project planning by calculating potential energy savings from indirect evaporative cooling based on local weather data.

**Highlights:** Energy use simulation for evaporative cooling, Estimate annual cooling and dehumidification energy, Calculate potential energy savings, Utilize location-specific weather data, Export results via email or AirPrint

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is airTool free?

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

### Is myCoolblue free?

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

### Do airTool or myCoolblue have ads?

Neither airTool nor myCoolblue shows ads.

### Which is updated more often, airTool or myCoolblue?

airTool ships an update every 4 months, and myCoolblue every 3 months. Most recently, airTool was updated on October 14, 2026 and myCoolblue on October 11, 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.*