# Chemical Engineering AppSuite HD vs DWSIM Simulator

The clearest difference is price: DWSIM Simulator at Free against Chemical Engineering AppSuite HD's $0.99. Chemical Engineering AppSuite HD's advantage is in-app purchases (none vs 10) and review sentiment (86% vs 57%). On rating, ratings volume, update cadence and ads there is nothing between them.

DWSIM Simulator is free to download; Chemical Engineering AppSuite HD costs $0.99 up front. DWSIM Simulator sells 10 one-off in-app purchases. Chemical Engineering AppSuite HD asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Chemical Engineering AppSuite HD against 4.7 for DWSIM Simulator. Both are backed by a comparable volume of ratings — 81 and 107 respectively. Written reviews are what separate them: 86% of Chemical Engineering AppSuite HD's written reviews are positive against 57% of DWSIM Simulator's.

Chemical Engineering AppSuite HD ships an update every 2 months, DWSIM Simulator every 6 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Chemical Engineering AppSuite HD | DWSIM Simulator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.6 (81 ratings)](https://appshunter.io/ios/app/chemical-engineering-appsuite-hd/id526158171/reviews) | **[4.7 (107 ratings)](https://appshunter.io/ios/app/dwsim-simulator/id1162110266/reviews)** |
| Number of ratings | 81 | **107** |
| Positive reviews | **86.1% of reviews** | 57.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#199** | — |
| Size | 46 MB | 106 MB |
| Requires iOS | **7.1** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vector 254 LLC](https://appshunter.io/developer/821141755) | [Daniel Medeiros](https://appshunter.io/developer/1091004600) |

## What reviewers say

### Chemical Engineering AppSuite HD

[App page](https://appshunter.io/ios/app/chemical-engineering-appsuite-hd/id526158171)

**Currently charting:** #199 Top Paid · Productivity (US App Store)

This comprehensive app suite offers a vast array of tools for chemical engineers, chemists, and students. It includes unit converters, physical property calculations, thermodynamic equations, and specialized calculators for fluid dynamics and more. Access a chemical database, periodic table, and graphing tools.

**Highlights:** 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

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

**In-app purchases:** none

**What reviewers like**

- 👍 Very useful for chemical engineering
- 💡 Extensive compound database
- 💡 Comprehensive unit converter
- 👍 Great for quick calculations
- 👍 Handy for students and professionals

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 Converter issues
- 🐛 Incompatible with newer iOS versions
- 🐛 Some unit conversions are incorrect
- 🐛 Lacks some common compounds

**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

**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


### DWSIM Simulator

[App page](https://appshunter.io/ios/app/dwsim-simulator/id1162110266)

This app provides a powerful offline chemical process simulation tool. It allows engineers to build complex process models, perform thermodynamic calculations, and analyze various unit operations. Features include a touch-enabled PFD interface, extensive compound databases, and advanced calculation engines.

**Highlights:** Offline chemical process simulation, Touch-enabled PFD drawing interface, Extensive thermodynamic models, Compound database for 1500+ compounds, Unit operation models, Chemical reaction and reactor support, Flowsheet parametric studies

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| User-Defined Unit Set | $1.99 | one-time |
| Flowsheet Utilities Pack | $2.99 | one-time |
| Unit Operations Pack 1 | $2.99 | one-time |
| Unit Operations Pack 2 | $2.99 | one-time |
| Unit Operations Pack 3 | $2.99 | one-time |
| Activity Coeff. Model Pack | $3.99 | one-time |
| Equation of State Model Pack | $3.99 | one-time |
| Reactor Models Pack | $4.99 | one-time |
| Unlock All Features | $9.99 | one-time |
| Unlock All Features | $39.99 | one-time |


## Frequently asked questions

### Is Chemical Engineering AppSuite HD free?

Chemical Engineering AppSuite HD costs $0.99, with no in-app purchases.

### Is DWSIM Simulator free?

DWSIM Simulator is free to download, with in-app purchases available.

### Which has better reviews, Chemical Engineering AppSuite HD or DWSIM Simulator?

DWSIM Simulator is rated higher. Chemical Engineering AppSuite HD averages 4.6 out of 5 from 81 ratings, while DWSIM Simulator averages 4.7 from 107 ratings.

### Do Chemical Engineering AppSuite HD or DWSIM Simulator have ads?

Neither Chemical Engineering AppSuite HD nor DWSIM Simulator shows ads.

### Which is updated more often, Chemical Engineering AppSuite HD or DWSIM Simulator?

Chemical Engineering AppSuite HD ships an update every 2 months, and DWSIM Simulator every 6 weeks. Most recently, Chemical Engineering AppSuite HD was updated on October 26, 2026 and DWSIM Simulator on October 24, 2026.

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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.*