# Living_Psychrometrics — Interactive Psychrometrics

> Psychrometric calculations and visualizations for air properties and HVAC applications. (iPhone/iPad app by MICRI Consult.)

- Source: https://appshunter.io/ios/app/living-psychrometrics/id1389820188 (this page in markdown: same URL + `.md`)
- Developer: [MICRI Consult](https://appshunter.io/developer/1121122654)
- Category: Business, Utilities
- Price: $5.99
- Rating: 3.00/5 from 1 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 28 MB
- Languages: American English
- Released: 2018-06-25
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/living-psychrometrics/id1389820188/reviews.md

## What is Living_Psychrometrics?

This app offers four different calculations and shows the results both in a pane and on a psychrometric diagram:
1. Air treatment
   Calculates how to convert a given ambient air to a required design air. The steps involved are cooling with a given sensible heat factor, dehumidifying, heating and humidifying (adiabatic or steam). Depending on the given and required air conditions, some of these steps may not be needed.

2. Capacities
   Calculates the required capacity to cool down or heat up a given amount of air (e.g. air in your room).

3. Heat exchanger
   Calculates how warm room air heats up cool ambient air before supplying it as fresh air to the room. While heating up the ambient air, the heat exchanger cools down the room air, which may result in condensate. When the ambient air would be too cold, this calculation dimensions an electric heater to prevent condensate.

4. Carburetor icing
   Given a temperature and a dew point temperature, calculates the probability of icing in an airplane carburetor. Graphically shows the danger zones on a diagram.

These four calculations show the results in a pane, but also graphically in a diagram. You can choose between three different diagrams:
1. Psychrometric
   This is the classic diagram representing different kinds of air properties into a single diagram. You find detailed descriptions in standard books about air treatment, such as ASHRAE. This diagram shows lines of constant temperature, humidity ratio, relative humidity, enthalpy and specific volume.

2. Mollier
   This is probably the oldest diagram to represent air properties and named after its inventor Richard Mollier (1863-1935). To get a psychrometrics diagram from a Mollier diagram, swap it along the vertical axis and rotate it 90°.
   The Mollier diagram is heavily used in Eastern Europe and Germany and shows the same lines as in the psychrometrics diagram.

3. Dewpoint
   This diagram is meant for meteorologists and pilots. It is easy to read important weather data, such as temperature, dew point and relative humidity. However, this diagram shows the same constant lines as for the other two. Interestingly, the straight lines in the other two diagrams become curved lines in this one and vice versa.

Features
- Select two air properties to define a point: dry bulb temperature, wet bulb temperature, humidity ratio, relative humidity, enthalpy, specific volume and moist air density.
- No need for a keyboard. Enter data using buttons for small and large value increments.
- Choose between metric or imperial unit dimensions, e.g. °C and °F or kW and BTU/h.
- See immediate results of any change on the diagrams and the result panel shows detailed information about a point on the diagram.
- Choose one of the diagram types (Psychrometrics, Mollier or Dewpoint) for the graphical results. Hide some constant lines on the selected diagram to simplify it. Define colors for the diagram lines and the background gradient.
- Define the efficiency properties of a heat exchanger, giving you professional results.
- Tap the explain tab to get a short explanation of a calculation or a diagram.
- Zoom in (two fingers gesture) and pan (one finger gesture) to enlarge and move a part of the diagram.
- The app saves your latest settings and starts up with those settings.
- Supports five languages (English, French, German, Spanish and Dutch), which you can set in the preferences.
- Supports light and dark themes.

## Key features

- Four distinct psychrometric calculations
- Numerical and graphical results display
- Interactive psychrometric diagrams (Psychrometric, Mollier, Dewpoint)
- Customizable diagram appearance
- Unit selection (metric/imperial)
- Intuitive data input with increment buttons

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/living-psychrometrics/id1389820188/reviews.md

### 1/5 — Horrible!

*2024-03-20, version 3.0*

When an app costs this much, you would expect much better! For busy engineers you can’t wait 20 minutes to change the airflow by slow moving scroll function. I tried to do a calculation at 10,000 CFM …but because you can’t enter the number and have to scroll it takes way too long, especially if wanting to do multiple calculations at airflows that differ alot.
Absolutely horrible!

### 1/5 — I would like only a test, l woul like my money Back.

*2022-01-21, version 2.0.0*

I didn’t like this app, can l get my money Back?

### 1/5 — Air flow

*2019-05-29*

I cannot enter 7000ls to 10000ls
I cannot use this as there seems to be restrictions.

## Frequently asked questions about Living_Psychrometrics

### What are the main calculations offered by Living Psychrometrics?

Living Psychrometrics offers four main calculations: Air treatment, Capacities, Heat exchanger, and Carburetor icing. These calculations help analyze and predict various air-related phenomena.

### What types of diagrams are available in Living Psychrometrics?

The app provides three types of diagrams for visualizing results: the classic Psychrometric diagram, the Mollier diagram, and the Dewpoint diagram. Users can select the diagram that best suits their needs.

### Can I customize the appearance of the diagrams in Living Psychrometrics?

Yes, users can customize the diagrams by choosing between metric or imperial units, defining colors for diagram lines and the background gradient, and hiding specific constant lines to simplify the display.

### How does Living Psychrometrics handle data input?

Living Psychrometrics simplifies data input by allowing users to select two air properties to define a point. Instead of a keyboard, data can be entered using buttons for small and large value increments.

### What is the price of Living Psychrometrics?

Living Psychrometrics is a paid application, priced at $5.99. This one-time purchase grants access to all its features and calculations.

### On which devices can I use Living Psychrometrics?

Living Psychrometrics is supported on iOS devices, including iPhone, iPad, and iPod. It is designed for users who need to perform psychrometric calculations on the go.

### How frequently is Living Psychrometrics updated?

The application was last updated on August 28, 2022, with version 3.0. This indicates a moderate update frequency, suggesting ongoing support and potential improvements.

### Does Living Psychrometrics have ads?

No, Living Psychrometrics does not contain advertisements. As a paid application, it provides an uninterrupted user experience without any ad interruptions.

## Version history (last 3 releases)

### 3.0 — 2022-08-28

- Several improvements of the user interface to get more pleasing overviews, to better guide the user and to get a more logical data ordering.
- Redesign of several screens in portrait display.
- Correcting some transitions from portrait display to landscape and vice versa.

### 2.0.0 — 2018-10-04

A new air treatment calculation, offering a maximum of four steps to get from a given ambient air to a required design air: cooling, dehumidifying, heating and humidifying. Supports different sensitive heat factor and two humidifying methods: adiabatic and steam.

### 1.0 — 2018-05-26

No release notes.

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All apps by MICRI Consult: https://appshunter.io/developer/1121122654

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*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 2026-06-10.*