# Pipe Tools vs DWSIM Simulator

The clearest difference is rating: DWSIM Simulator at 4.6 against Pipe Tools's 4.1. DWSIM Simulator also leads on update cadence (every 6 weeks vs every 12 months) and ratings volume (105 vs 19). Pipe Tools's advantage is review sentiment (79% vs 57%) and iOS requirement (8.0 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Pipe Tools sells 1 one-off in-app purchase and DWSIM Simulator sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

DWSIM Simulator holds the better App Store score, 4.6 against 4.1. That said, the two scores are not equally well evidenced: DWSIM Simulator has 105 ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 79% of Pipe Tools's written reviews are positive against 57% of DWSIM Simulator's, so the app with the better star average is not the one people write more warmly about.

Pipe Tools ships an update every 12 months, DWSIM Simulator every 6 weeks. The most recent releases landed on June 10, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Pipe Tools | DWSIM Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (19 ratings)](https://appshunter.io/ios/app/pipe-tools/id372454624/reviews) | **[4.6 (105 ratings)](https://appshunter.io/ios/app/dwsim-simulator/id1162110266/reviews)** |
| Number of ratings | 19 | **105** |
| Positive reviews | **78.6% of reviews** | 57.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 57 MB | 106 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bri-Steel Manufacturing](https://appshunter.io/developer/968778552) | [Daniel Medeiros](https://appshunter.io/developer/1091004600) |

## What reviewers say

### Pipe Tools

[App page](https://appshunter.io/ios/app/pipe-tools/id372454624)

This app provides a comprehensive steel pipe handbook with charts for wall thickness, mass, and pressure calculations. It facilitates quick conversions and cost comparisons, allowing users to prepare and send customized PDF quotes for pipe sales.

**Highlights:** Steel pipe charts (wall thickness, mass), Unit conversions (feet, meters, pounds, kg), Pipe cost comparison, Customizable PDF quote generation, Mechanical and hardness conversions, Pressure and wall thickness calculations

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro Tools | $0.99 | one-time |


### 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 Pipe Tools free?

Pipe Tools is free to download, with in-app purchases available.

### Is DWSIM Simulator free?

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

### Which has better reviews, Pipe Tools or DWSIM Simulator?

DWSIM Simulator is rated higher. Pipe Tools averages 4.1 out of 5 from 19 ratings, while DWSIM Simulator averages 4.6 from 105 ratings.

### Do Pipe Tools or DWSIM Simulator have ads?

Neither Pipe Tools nor DWSIM Simulator shows ads.

### Which is updated more often, Pipe Tools or DWSIM Simulator?

Pipe Tools ships an update every 12 months, and DWSIM Simulator every 6 weeks. Most recently, Pipe Tools was updated on June 10, 2026 and DWSIM Simulator on September 13, 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.*