# Chemical Engineering AppSuite HD

> Chemical engineering suite with calculators, unit converters, and chemical data. (iPhone/iPad app by Vector 254 LLC.)

- Source: https://appshunter.io/ios/app/chemical-engineering-appsuite-hd/id526158171 (this page in markdown: same URL + `.md`)
- Developer: [Vector 254 LLC](https://appshunter.io/developer/821141755)
- Category: Productivity, Education
- Price: $0.99
- Rating: 4.60/5 from 80 App Store ratings · 79 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.1 · 46 MB
- Languages: American English, German (Germany)
- Released: 2012-05-29
- Data updated: 2026-08-04
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/chemical-engineering-appsuite-hd/id526158171/reviews.md

## What is Chemical Engineering AppSuite HD?

There are many unit conversion apps and there are many calculator apps... There are even chemistry apps and engineering apps... but there is only one Chemical Engineering AppSuite!!!

Chemical Engineering AppSuite for iPad and iPhone has been developed by a team of chemical engineers for both professionals and students.  This one-of-a-kind app features many equations and data used by chemical engineers, chemists and other engineers and integrates them with unprecedented functionality!  And yes, we have also unit converters and graphing calculators.

The app is also great for any high school or college student in science and math courses.  Professionals will also find it very useful!  

Anyone with an interest in science, chemistry, math or engineering can find ways to use Chemical Engineering AppSuite HD!

Highlights of the app include:

Full steam table calculations based on IAPWS95 model.  

Database with 1000+ common industrial and laboratory chemicals

Unit converters for temperature, pressure, length, area, time, and many, many more.  Select your favorites for quick access!

Physical property calculations for more than 1000 compounds and elements including densities, vapor pressures, heat capacities, viscosities.

"ChemE Tools" for rapidly solving problems in fluid dynamics, process controls, mass/mole calculations and combustion reactions!

Periodic table of the elements with a high-resolution, zoomable view

Thermodynamic Equations of State: Rapidly solve for any variable in ideal gas, Peng-Robinson, van der Waals, SRK, and others.

Calculation of compressibility factors and graphing of individual compressibility charts via the Lee-Kesler model

Binary vapor-liquid equilibrium prediction with graphing via Raoult's Law (ideal) or Wilson Model (real).  Over 675 pairs possible in the Wilson Model.

Spreadsheet, statistics, and graphing tools with a built in graphing calculator! (iPad only).  The iPhone version includes a very useful calculator as well!

Matrix tools and linear equation solvers.

Randomized practice problems for mass balances. 

Get data from the app and share via PDF, photos and Twitter.

Follow us on Twitter and send us your feedback and suggestions for new content: @Vector254

Check out our other apps: Engineering Unit Converter and ODEsseus - Numerical Solver for Differential Equations.

## Key features

- Steam table calculations
- Chemical database (1000+ compounds)
- Extensive unit converters
- Physical property calculations
- Fluid dynamics & process control tools
- Thermodynamic equations of state
- Vapor-liquid equilibrium prediction

## Chart rankings

- #176 in Top Paid · Productivity (US App Store)

## What do users think of Chemical Engineering AppSuite HD?

Overall sentiment: mixed

**Pros**

- 👍 Very useful for chemical engineering
- 💡 Extensive compound database
- 💡 Comprehensive unit converter
- 👍 Great for quick calculations
- 👍 Handy for students and professionals
- 👍 Excellent information source
- 👍 Well-organized and convenient
- 👍 Great value for price
- 👍 "Swiss Army Knife" of Chem E tools
- 👍 Works on the go
- 👍 "Must-have" app
- 👍 "Total solution app"

**Cons**

- 🐛 App crashes frequently
- 🐛 Converter issues
- 🐛 Incompatible with newer iOS versions
- 🐛 Some unit conversions are incorrect
- 🐛 Lacks some common compounds
- 🐛 Mixed unit usage
- 🐛 Limited steam property calculations

**Commonly reported bugs**

- App shuts down when using converter
- Conversion tables not working with new iOS versions
- Unit converter not working
- App crashes with iOS 11
- App crashes on iOS 7.x
- Converter doesn't convert gallons to barrels correctly
- 1 gallon not equal to 8 pints
- Barrel of oil conversion factor is incorrect
- Time converter converting hours to days incorrectly
- Area units converter needs fixing
- Graphical bugs when changing tools/graphs

**Most requested features**

- Add Internal Energy
- Save imperial units as default
- Add more ranges for Antoine constants
- Functions for choosing equations of state
- Add conical frustum volume calculator
- Add liquid level calculator
- Add concentration section to conversions
- Add more steam tables for common compounds (ammonia, R-134a)
- Include unit operators and their functions
- Include examples of industrial processes
- Include PFD and P&ID information
- Include quizzes and answers
- Add a built-in scientific calculator
- Fix area units converter
- Fix time converter
- Reference for calculations
- Add butane and other common compounds
- Consistent use of preferred units
- Obtain temperature from entropy and pressure data for cycle problems
- Add Raul's Law

## Recent user reviews (10 of 79)

All indexed reviews: https://appshunter.io/ios/app/chemical-engineering-appsuite-hd/id526158171/reviews.md

### 5/5 — Best

*2024-08-04*

Excellent information

### 5/5 — Excelente ferramenta

*2022-10-27*

Otimo

### 5/5 — The only scientific calculator worth downloading

*2019-02-19*

Definitely the real deal...
They have an internal database of a ridiculous number of compounds and tools to calculate practical physical constants about said compounds. Plus a unit converter for every unit imaginable

### 5/5 — Very Handy

*2018-11-06*

I used this all through college as a student at The University of Alabama. Now that I’m out and have a job, I find myself still coming back to this app time and time again. It’s great, it’s free, and always very useful in and out of school. If you’re a chemical engineer, this is a must-have

### 1/5 — Fix your App!

*2018-02-01*

The app keeps shutting down every time I try to use the converter! I bought this app to make converting more convenient, not less!

### 5/5 — Conversion Tables

*2018-01-23*

This suite is excellent! I have used it several years for my chemical engineering calculations but lately, with the new Apple IOS versions, the conversion tables do not do their work. It will nice to have them performing again.

### 1/5 — Does not work beware

*2018-01-18, version 3.0.2*

Unit converter does not work as well as everything else!,
I want my money back!

### 4/5 — Mike - seafarer

*2018-01-09, version 3.0.2*

Like the app - used it often
Please fix recent issue with converter
Works on iOS 10.3.3

### 1/5 — Was great but stopped working

*2018-01-07*

Was a great app for chemistry and engineering. I used to use this a lot at work. But it hasn’t been updated to be compatible with IOS 11, and it crashes now. Too bad, because I need something like it. Hope that someone can give it an update.

### 1/5 — Does not worth it

*2018-01-05*

My app doesn’t work properly👎🏻
When I use the converter section, it suddenly exits the app😑

## Frequently asked questions about Chemical Engineering AppSuite HD

### What does the Chemical Engineering AppSuite HD do?

This app provides a comprehensive suite of tools for chemical engineers, chemists, and students. It includes unit converters, physical property calculations for over 1000 compounds, thermodynamic equation solvers, and specialized calculators for areas like fluid dynamics and process controls. It also features a chemical database and a periodic table.

### What are the key features of this app?

Key features include full steam table calculations, a database of over 1000 industrial and laboratory chemicals, extensive unit converters, physical property calculations, specialized 'ChemE Tools' for various engineering problems, thermodynamic equations of state solvers, vapor-liquid equilibrium prediction, and graphing calculators (iPad only).

### Is this app free to download?

The application is free to download. However, it offers in-app purchases for additional features and content, such as full steam table calculations based on the IAPWS95 model.

### What kind of calculations can I perform with this app?

You can perform a wide range of calculations including steam table data, physical properties of chemicals (density, vapor pressure, etc.), thermodynamic equations of state, compressibility factors, and vapor-liquid equilibrium predictions. It also offers tools for fluid dynamics, mass/mole calculations, and combustion reactions.

### Who would benefit from using this app?

This app is designed for chemical engineers and chemists in professional settings, as well as high school and college students studying science, chemistry, math, or engineering. Anyone with an interest in these scientific fields can find valuable tools within the app.

## Version history (last 5 releases)

### 3.0.2 — 2015-03-07

This update from Apple will improve the functionality of this app. No new features are included.

Although there has always been a really nice Periodic Table within the iPad version of the app, we've made it much easier to find and use as a PDF.  Find it under 'General Info' -> 'Chemistry" on both the iPhone and iPad versions of the app.

Fixed a bug that could cause the app to crash if the user entered invalid value in the Water Vapor Pressure or Air-Ideal Gas modules.

### 3.0.1 — 2015-02-28

Added links to our Facebook page.  'Like Us' and post your comments, feedback and suggestions for new modules/content!

### 3.0 — 2015-02-18

The long awaited next update to the ChemE App has arrived!  Welcome to Version 3.0!

Updated for iOS 8 with a new look and feel to app.  

A built-in calculator has been added to the iPhone version!  This calculator not only does math, but can store and utilize variable names.

Many more unit categories and unit types are available within the Converter.

A greatly improved PDF viewer has been implemented for viewing 'General Info' files.  Full-color PDF files for psychrometric charts, Friction Factors and Mollier diagrams have also been added.

Thermophysical property model is now available for Carbon Dioxide under 'Water and Steam'.

Expanded the Wilson VLE calculations to include over 675 pairs.

Fixed bug in tank filling that incorrectly calculated values when filling/draining.

Other bug fixes and performance enhancements.

### 2.1 — 2013-08-21

Updates for both iPhone & iPad:

New thermodynamic property calculators now available under 'Water and Steam':

R-134a
Ammonia
Air (Ideal Gas) 

Added a Gas Constant Converter for rapid determination of 'R' in any units.  Select mass/moles and PV/energy.

A bunch of new tables and charts have been added PDFs to 'General Info'.  All of these files can be exported via email and printed.

A number of bug fixes, error corrections and other minor enhancements.

iPad only:

New 'Tank Filling' module in ChemE tools.  We've built a lot of functionality into this feature.  Check it out!

### 2.0.1 — 2013-06-13

Fixed bug so that iOS 5.1 users can now use the app again!!!

Improved steam model performance near the critical point of water.

Added reference points to water vapor pressure.

Other minor enhancements and bug fixes.

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## More apps by Vector 254 LLC

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All apps by Vector 254 LLC: https://appshunter.io/developer/821141755

## Related topics

[chemical engineering appsuite hd](https://appshunter.io/ios/topics/chemical-engineering-appsuite-hd) · [engineering chemical](https://appshunter.io/ios/topics/engineering-chemical)

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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 2026-08-04.*