# DWSIM Simulator vs Process Engineer Toolbox

The clearest difference is in-app purchases: Process Engineer Toolbox at none against DWSIM Simulator's 10. Process Engineer Toolbox also leads on iOS requirement (10.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. DWSIM Simulator sells 10 one-off in-app purchases. Process Engineer Toolbox asks for nothing beyond the download.

## The numbers

| Metric | DWSIM Simulator | Process Engineer Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (105 ratings)](https://appshunter.io/ios/app/dwsim-simulator/id1162110266/reviews)** | — |
| Number of ratings | **105** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free | — |
| Size | 106 MB | 83 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Medeiros](https://appshunter.io/developer/1091004600) | [Mohamad Khaled](https://appshunter.io/developer/1503615239) |

## What reviewers say

### 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 |


### Process Engineer Toolbox

[App page](https://appshunter.io/ios/app/process-engineer-toolbox/id1503615240)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DWSIM Simulator free?

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

### Is Process Engineer Toolbox free?

Process Engineer Toolbox is free to download, with no in-app purchases.

### Do DWSIM Simulator or Process Engineer Toolbox have ads?

Neither DWSIM Simulator nor Process Engineer Toolbox shows ads.

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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.*