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  • #: 233229
  • Price: $7.99 In Apple Store
  • Category: Productivity
  • Updated: 2012-05-29
  • Current Version: 2.0
  • 2.0
  • Size: 1.00 MB
  • Language: English
  • Seller: Linric Company
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
  • © Linric Company 2010
  •  Add to Favorite apps



PsyCalc, the number one desktop psychrometric calculator for over 15 years, is now available for iPhone and iPad. PsyCalc's intuitive interface, flexibility and wide operating range makes it the tool of choice for tens of thousands of professionals worldwide. The rigorous calculation engine driving PsyCalc's results is recognized by many engineers as the gold standard.

PsyCalc includes screens for finding properties of a point, mixing two air streams, finding process energies between two points and setting your screen defaults.

All of PsyCalc's functions operate in I-P (inch-pound or English) units or SI (System International or metric) units. Plus the input and output values can be set to different units providing an easy means to make conversions.

All of PsyCalc's functions operate as changes are made on the screen. There is no calculate button, all values are always up-to-date and valid.

Numeric inputs are entered via a numeric keypad.

Air and Water Vapor Properties in PsyCalc®:

Psychrometric -

°Fdb / °Cdb - Dry Bulb Temperature

°Fwb / °Cwb - Wet Bulb Temperature

%RH - Relative Humidity

Btu/lb / kJ/kg - Enthalpy

°Fdp / °Cdp - Dew Point Temperature

gr/lb / g/kg - Humidity Ratio

ft≥/lb - m≥/kg - Specific Volume

in Hg VP / mm Hg VP - Vapor Pressure

lb/ft³ / kg/m³ - Density

PPMw - Parts Per Million by weight

PPMv - Parts Per Million by volume

gr/ft³ / g/m³ - Absolute Humidity

Pressure -

Alt in Ft / m - Altitude (elevation).

psia / kPa - Absolute Pressure.

PsyCalc® Limits -

The limit ranges for this software are:

Dry bulb Temperature: °F / °C

-80 to 1500 / -62.2 to 815.5

Dew Point Temperature: °F / °C

-80 to 200 / -62.2 to 93.3

Absolute Pressure: psia / kPa

0.7 to 400 13.8 to 2757

PsyCalc® is brought to you by Linric Company

"We do the world's psychrometric calculations!"

PsyCalc is a registered trademark of Linric Company.

What's New in Version 2.0

Property selector has been replaced to solve a UI issue.
Language support for French, German, Czech has been added.

iPhone Screenshots

PsyCalc iPhone Screenshot 1
PsyCalc iPhone Screenshot 2
PsyCalc iPhone Screenshot 3

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Rated 5/5 based on 3 customer reviews.


5/5 stars

An absolute classic... finally on the iPhone

PsyCalc running under Windows has been a long-time standby for me. It's always been quick, accurate, versatile, easy to use and comprehensive without being overwhelming. In 15 years, I've never seen anything that can touch it for either practical everyday utility or impressive accuracy.

Now that I have PsyCalc on my iPhone, there's one less reason for me to have to boot Windows on my Mac. That saves me time, not to mention the fact that, as an iPhone app, PsyCalc now goes with me everywhere: building inspections, HVAC system diagnostic visits, water damage investigations, thermal imaging investigations of building exteriors, client meetings, overseas investigations, secure facilities in which I cannot boot my laptop... the works.

For those who've been using PsyCalc for many years, you'll find it the same steady, straightforward and reliable performer it's always been on the PC.

For those who have always used only a Mac and never had access to it before, you'll find PsyCalc a real delight to use. On the PC it's always been justifiably legendary for it's Mac-like ease of use, and the iPhone/iPad version lives up to that excellent and hard-won reputation.

5/5 stars

A really excellent resource.

I purchased this app because I couldn't find a good way to get good thermodynamic information that I needed for doing drying calculations. There are many excellent features, and when I had a question, the author was back to me the next day with an answer. If you need this kind of data...this is the program for you!

5/5 stars


I've used this program for over 10 years and was excited to see it available for the iPhone. The results are accurate and identical to the desktop version. It exceeds all my expectations. Great product!


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