# Classkick vs PhET Simulations

The clearest difference is price: Classkick at Free against PhET Simulations's $0.99. Classkick also leads on update cadence (every 9 days vs every 14 months) and ratings volume (727 vs 49). PhET Simulations's advantage is rating (4.5 vs 3.1) and review sentiment (66% vs 33%). On ads, in-app purchases and iOS requirement there is nothing between them.

Classkick is free to download; PhET Simulations costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PhET Simulations holds the better App Store score, 4.5 against 3.1. That said, the two scores are not equally well evidenced: Classkick has 727 ratings behind it against 49, so its average is the more settled of the two. Written reviews point the same way: 33% of Classkick's written reviews are positive against 66% of PhET Simulations's.

Classkick ships an update every 9 days, PhET Simulations every 14 months. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Classkick | PhET Simulations |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.1 (727 ratings)](https://appshunter.io/ios/app/classkick/id909904332/reviews) | **[4.5 (49 ratings)](https://appshunter.io/ios/app/phet-simulations/id1134126831/reviews)** |
| Number of ratings | **727** | 49 |
| Positive reviews | 33.1% of reviews | **65.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 14 months |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#34** |
| Size | 73 MB | 125 MB |
| Requires iOS | 15 | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Classwork Co](https://appshunter.io/developer/926451208) | [University of Colorado Boulder](https://appshunter.io/developer/972210292) |

## What reviewers say

### Classkick

[App page](https://appshunter.io/ios/app/classkick/id909904332)

This app allows students to complete assignments digitally and receive instant feedback from teachers and classmates. Educators can create paperless assignments, monitor student progress in real-time, and facilitate peer-to-peer learning. It aims to increase student feedback and reduce grading time.

**Highlights:** Create paperless assignments, Real-time student work monitoring, Instant teacher feedback, Anonymous peer-to-peer help, Work at own pace, Ask for help privately

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Helpful for online school
- 🚀 Great for immediate feedback
- 👍 Easy to use and navigate

**What reviewers complain about**

- 🐛 Frequent crashes and glitches
- 🐛 Laggy and slow performance
- 👎 Difficult text/writing controls
- 👎 Lacks key features like split-screen

**Reported bugs**

- Assignments not loading properly
- Inability to save or access work
- Incompatibility with newer devices/OS

**Requested features**

- Add split-screen support
- Improve text/writing controls
- Better Apple Pencil integration
- Enhance stability and performance


### PhET Simulations

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

**Currently charting:** #34 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 Classkick free?

Classkick is free to download, with no in-app purchases.

### Is PhET Simulations free?

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

### Which has better reviews, Classkick or PhET Simulations?

PhET Simulations is rated higher. Classkick averages 3.1 out of 5 from 727 ratings, while PhET Simulations averages 4.5 from 49 ratings.

### Do Classkick or PhET Simulations have ads?

Neither Classkick nor PhET Simulations shows ads.

### Which is updated more often, Classkick or PhET Simulations?

Classkick ships an update every 9 days, and PhET Simulations every 14 months. Most recently, Classkick was updated on October 11, 2026 and PhET Simulations on October 15, 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.*