# Cell World vs PhET Simulations

Cell World and PhET Simulations both sit at 4.6 stars, but that hides the real split: 94% of Cell World's written reviews are positive against 66% of PhET Simulations's. Cell World also leads on iOS requirement (6.0 vs 15.0). PhET Simulations's advantage is chart position (#85 vs unranked) and ratings volume (49 vs 9). On price, rating, update cadence and ads there is nothing between them.

Cell World costs $0.99 and PhET Simulations $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for Cell World against 4.5 for PhET Simulations. That said, the two scores are not equally well evidenced: PhET Simulations has 49 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 94% of Cell World's written reviews are positive against 66% of PhET Simulations's.

Cell World ships an update every 18 months, PhET Simulations every 14 months. The most recent releases landed on September 26, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Cell World | PhET Simulations |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.6 (9 ratings)](https://appshunter.io/ios/app/cell-world/id873302906/reviews)** | [4.5 (49 ratings)](https://appshunter.io/ios/app/phet-simulations/id1134126831/reviews) |
| Number of ratings | 9 | **49** |
| Positive reviews | **94.1% of reviews** | 65.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 14 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#85** |
| Size | 84 MB | 125 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Virtual Immersive Educational Worlds, Inc.](https://appshunter.io/developer/873302909) | [University of Colorado Boulder](https://appshunter.io/developer/972210292) |

## What reviewers say

### Cell World

[App page](https://appshunter.io/ios/app/cell-world/id873302906)

Explore the intricate world of a cell in an interactive, game-like experience. Navigate through the cytoplasm and discover the functions of various cell parts like the nucleus and mitochondria. This app offers an immersive journey into the microscopic elements that power the human body.

**Highlights:** Interactive cell exploration, Navigate cell parts, Discover organelle functions, Immersive microcosm experience, Educational gameplay

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

**In-app purchases:** none


### PhET Simulations

[App page](https://appshunter.io/ios/app/phet-simulations/id1134126831)

**Currently charting:** #85 Top Paid · Education (US App Store)

Explore science and math concepts through interactive simulations. This app provides over 75 HTML5 simulations for learning about atoms, energy, multiplication, and more. It's ideal for students, parents, and educators, offering offline access and multiple language support.

**Highlights:** Interactive science and math simulations, Offline play capability, Multiple language support, Customizable favorites collection, Automatic simulation updates, Easy simulation sorting

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

**In-app purchases:** none


## Frequently asked questions

### Is Cell World free?

Cell World costs $0.99, with no in-app purchases.

### Is PhET Simulations free?

PhET Simulations costs $0.99, with no in-app purchases.

### Which has better reviews, Cell World or PhET Simulations?

Cell World is rated higher. Cell World averages 4.6 out of 5 from 9 ratings, while PhET Simulations averages 4.5 from 49 ratings.

### Do Cell World or PhET Simulations have ads?

Neither Cell World nor PhET Simulations shows ads.

### Which is updated more often, Cell World or PhET Simulations?

Cell World ships an update every 18 months, and PhET Simulations every 14 months. Most recently, Cell World was updated on September 26, 2026 and PhET Simulations on September 23, 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.*