# AirCalc_

> Moist air state calculator based on psychrometric principles. (iPhone/iPad app by AIR DESIGN, INC..)

- Source: https://appshunter.io/ios/app/aircalc/id923430782 (this page in markdown: same URL + `.md`)
- Developer: [AIR DESIGN, INC.](https://appshunter.io/developer/923430781)
- Category: Productivity, Utilities
- Price: $0.99
- Age rating: 4+
- Requires: iOS 15.0 · 24 MB
- Languages: American English
- Released: 2014-12-10
- Data updated: 2026-09-09
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/aircalc/id923430782/reviews.md

## What is AirCalc_?

The state of moist air is shown by pressure, dry-bulb temperature, relative humidity, specific enthalpy, specific volume bulk, etc. 
These values can be calculated if each expression of relations shows three values. 
Usually, since pressure is used under normal atmospheric pressure in many cases, if this is set constant and two status values are given, it can calculate other values by calculation. 
By using this program, each status value read in the psychrometric diagram can usually be calculated easily. 
Use of the range of dry-bulb temperature DB-20℃ to 90℃ is assumed. 
Even if it exceeds this domain, calculation may be possible, but the error will be larger.

## Key features

- 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

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/aircalc/id923430782/reviews.md

### 5/5 — シンプルで分かりやすい

*2024-07-21*

PC版も使ってます
パッパッと判断出来るので、便利です
アプリ版待っていました

### 1/5 — Can't operation

*2023-06-08, version 3.1.15*

Why did this software can't open? I already try many time!

### 1/5 — White screen

*2022-02-12, version 3.0.3*

I think it’s not support iphone X and above

### 1/5 — 入力できない

*2019-01-01*

DB-20℃から使えるとあるが、マイナスのボタンが無いので入力できない。

## Frequently asked questions about AirCalc_

### What is AirCalc_ used for?

AirCalc_ is used to calculate the state of moist air by inputting parameters such as pressure, dry-bulb temperature, and relative humidity. It simplifies the process of determining other properties like specific enthalpy and specific volume.

### How does AirCalc_ simplify calculations?

AirCalc_ allows you to calculate various moist air properties if you provide just three known values. This is particularly useful for quickly referencing values typically found on a psychrometric diagram.

### What is the assumed temperature range for calculations in AirCalc_?

The app assumes a dry-bulb temperature range of -20°C to 90°C for its calculations. While calculations may still be possible outside this domain, the accuracy may decrease.

### What devices is AirCalc_ compatible with?

AirCalc_ is compatible with iPhone, iPad, and iPod devices, running on iOS.

### When was AirCalc_ last updated?

The latest version of AirCalc_ is 3.5.50, which was last updated on January 15, 2026.

### What is the age rating for AirCalc_?

AirCalc_ has an age rating of 4+, making it suitable for a wide audience.

### Does AirCalc_ have ads?

No, AirCalc_ does not contain advertisements, as indicated by the 'hasAds' flag being false.

### What is the price of AirCalc_?

AirCalc_ is a paid application with a price of $0.99.

## Version history (last 5 releases)

### 3.5.51 — 2026-05-08

Minor bugs fixed and app performance improved.

### 3.5.50 — 2026-01-15

Minor bugs fixed and app performance improved.

### 3.5.49 — 2025-12-14

Minor bugs fixed and app performance improved.

### 3.5.47 — 2025-10-15

Minor bugs fixed and app performance improved.

### 3.4.43 — 2025-09-28

Minor bugs fixed and app performance improved.

## Apps similar to AirCalc_

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [DUCTable](https://appshunter.io/ios/app/ductable/id1526286872) | — | Free | Productivity |
| [Character Writer](https://appshunter.io/ios/app/character-writer/id615955519) | 3.8 (4) | $0.99 | Productivity |
| [HVAC Psychrometric LT](https://appshunter.io/ios/app/hvac-psychrometric-lt/id348669920) | — | $0.99 | Productivity |
| [建築設備簡易計算アプリ](https://appshunter.io/ios/app/id1659408787) | — | Free | Productivity |
| [Calculate Comfort](https://appshunter.io/ios/app/calculate-comfort/id605648449) | 3.9 (35) | Free | Productivity |
| [空気状態の計算](https://appshunter.io/ios/app/id6504130643) | — | Free | Productivity |

## More apps by AIR DESIGN, INC.

- [DuctChecker](https://appshunter.io/ios/app/ductchecker/id933593987)
- [PipeChecker](https://appshunter.io/ios/app/pipechecker/id1632174229)

All apps by AIR DESIGN, INC.: https://appshunter.io/developer/923430781

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*