# DWSIM Simulator vs Lab.Hacks

The clearest difference is review sentiment: Lab.Hacks at 96% against DWSIM Simulator's 57%. Lab.Hacks also leads on rating (4.9 vs 4.6). DWSIM Simulator's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. DWSIM Simulator sells 10 one-off in-app purchases and Lab.Hacks sells 8 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Lab.Hacks holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 105 and 136 respectively. Written reviews point the same way: 57% of DWSIM Simulator's written reviews are positive against 96% of Lab.Hacks's.

DWSIM Simulator ships an update every 6 weeks, Lab.Hacks every 2 months. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | DWSIM Simulator | Lab.Hacks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (105 ratings)](https://appshunter.io/ios/app/dwsim-simulator/id1162110266/reviews) | **[4.9 (136 ratings)](https://appshunter.io/ios/app/labhacks/id1462593060/reviews)** |
| Number of ratings | 105 | **136** |
| Positive reviews | 57.1% of reviews | **96.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 106 MB | 37 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Medeiros](https://appshunter.io/developer/1091004600) | [Lab.hacks GmbH](https://appshunter.io/developer/1746977613) |

## 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 |


### Lab.Hacks

[App page](https://appshunter.io/ios/app/labhacks/id1462593060)

This app serves as a laboratory assistant, offering a collection of essential tools, calculators, and guides for students, researchers, and technicians. It simplifies everyday lab tasks with features like dilution calculators, timers, and protocols, all accessible offline.

**Highlights:** Dilution, molarity, and unit conversion calculators, Smart lab timers, Quick reference tables, Step-by-step protocols and guides, Offline access, Minimalist design

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lab.hacks Ad-free monthly | $2.99 | per month |
| Lab.hacks Ad-free annual | $28.99 | per year |
| Donate 1$ | $0.99 | one-time |
| Donate 5$ | $3.99 | one-time |
| Donate 10$ | $8.99 | one-time |
| Donate 20$ | $17.99 | one-time |
| Donate 50$ | $44.99 | one-time |
| Donate 100$ | $89.99 | one-time |


## Frequently asked questions

### Is DWSIM Simulator free?

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

### Is Lab.Hacks free?

Lab.Hacks is free to download, with in-app purchases available.

### Which has better reviews, DWSIM Simulator or Lab.Hacks?

Lab.Hacks is rated higher. DWSIM Simulator averages 4.6 out of 5 from 105 ratings, while Lab.Hacks averages 4.9 from 136 ratings.

### Do DWSIM Simulator or Lab.Hacks have ads?

Lab.Hacks shows ads; DWSIM Simulator does not.

### Which is updated more often, DWSIM Simulator or Lab.Hacks?

DWSIM Simulator ships an update every 6 weeks, and Lab.Hacks every 2 months. Most recently, DWSIM Simulator was updated on October 1, 2026 and Lab.Hacks on October 7, 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.*