# AirCalc_ vs 空気状態の計算

The clearest difference is price: 空気状態の計算 at Free against AirCalc_'s $0.99. AirCalc_'s advantage is in-app purchases (none vs 2) and device support.

空気状態の計算 is free to download; AirCalc_ costs $0.99 up front. 空気状態の計算 sells 2 in-app purchases, starting at $0.49 per month. AirCalc_ asks for nothing beyond the download.

## The numbers

| Metric | AirCalc_ | 空気状態の計算 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Monetization | Paid | — |
| Size | 24 MB | 1 MB |
| Requires iOS | **15.0** | 17.4 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [AIR DESIGN, INC.](https://appshunter.io/developer/923430781) | [Sho Akita](https://appshunter.io/developer/1743635853) |

## What reviewers say

### AirCalc_

[App page](https://appshunter.io/ios/app/aircalc/id923430782)

This app calculates the state of moist air using parameters like pressure, temperature, and humidity. It simplifies psychrometric diagram readings by allowing calculations with just three known values, assuming normal atmospheric pressure.

**Highlights:** Moist air state calculation, Pressure, temperature, humidity input, Specific enthalpy and volume calculation, Simplified psychrometric diagram readings, Adjustable pressure settings, Assumed temperature range: -20°C to 90°C

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

**In-app purchases:** none


### 空気状態の計算

[App page](https://appshunter.io/ios/app/id6504130643)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1ヶ月利用 -アプリ内の計算ツールの利用権- | $0.49 | per month |
| 1年間利用 -アプリ内の計算ツールの利用権- | $4.99 | per year |


## Frequently asked questions

### Is AirCalc_ free?

AirCalc_ costs $0.99, with no in-app purchases.

### Is 空気状態の計算 free?

空気状態の計算 is free to download, with in-app purchases available.

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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.*