# DWSIM Simulator vs Lumeli

The clearest difference is rating: DWSIM Simulator at 4.7 against Lumeli's 1.0. DWSIM Simulator also leads on monetization model (free vs freemium) and ratings volume (107 vs 1). Lumeli's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads and in-app purchases there is nothing between them.

Both are free to download. DWSIM Simulator sells 10 one-off in-app purchases and Lumeli sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

DWSIM Simulator holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: DWSIM Simulator has 107 ratings behind it against 1, so its average is the more settled of the two.

DWSIM Simulator ships an update every 6 weeks, Lumeli every 3 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DWSIM Simulator | Lumeli |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (107 ratings)](https://appshunter.io/ios/app/dwsim-simulator/id1162110266/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/lumeli-less-scroll-more-life/id6810145460/reviews) |
| Number of ratings | **107** | 1 |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 106 MB | 43 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Medeiros](https://appshunter.io/developer/1091004600) | [Payam Ghaffarvand Mokari](https://appshunter.io/developer/6802419240) |

## 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 |


### Lumeli

[App page](https://appshunter.io/ios/app/lumeli-less-scroll-more-life/id6810145460)

This app helps you reduce mindless scrolling and stay focused on important tasks. It allows you to block distracting apps, track your progress, and earn rewards for building healthier screen-time habits. Turn saved time into visible achievements and make your time count.

**Highlights:** Block distracting apps, Set daily screen-time limits, Track time saved, Build daily streaks, Earn Time Coins, Unlock badges and achievements, Sync progress via iCloud

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lumeli Pro Monthly | $3.99 | per month |
| Lumeli Pro Annual | $19.99 | per year |
| Lumeli Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is DWSIM Simulator free?

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

### Is Lumeli free?

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

### Which has better reviews, DWSIM Simulator or Lumeli?

DWSIM Simulator is rated higher. DWSIM Simulator averages 4.7 out of 5 from 107 ratings, while Lumeli averages 1.0 from 1 ratings.

### Do DWSIM Simulator or Lumeli have ads?

Neither DWSIM Simulator nor Lumeli shows ads.

### Which is updated more often, DWSIM Simulator or Lumeli?

DWSIM Simulator ships an update every 6 weeks, and Lumeli every 3 weeks. Most recently, DWSIM Simulator was updated on November 2, 2026 and Lumeli on October 31, 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.*