# Marble Math Junior vs STEMWerkz

The clearest difference is price: STEMWerkz at Free against Marble Math Junior's $3.99. STEMWerkz also leads on update cadence (fortnightly vs every 4 months) and rating (5.0 vs 4.6). Marble Math Junior's advantage is in-app purchases (none vs 2) and ratings volume (1.9K vs 4). On review sentiment, ads and device support there is nothing between them.

STEMWerkz is free to download; Marble Math Junior costs $3.99 up front. STEMWerkz sells 2 in-app purchases, starting at $11.99 per month. Marble Math Junior asks for nothing beyond the download.

STEMWerkz holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Marble Math Junior has 1.9K ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 77% and 77% positive.

Marble Math Junior ships an update every 4 months, STEMWerkz fortnightly. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Marble Math Junior | STEMWerkz |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.6 (1.9K ratings)](https://appshunter.io/ios/app/marble-math-junior/id528617628/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/stemwerkz-learn-through-play/id1545876287/reviews)** |
| Number of ratings | **1.9K** | 4 |
| Positive reviews | 76.9% of reviews | 76.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 79 MB | 40 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Artgig Studio](https://appshunter.io/developer/436414537) | [Amdon Consulting Pte Ltd](https://appshunter.io/developer/1148893837) |

## What reviewers say

### Marble Math Junior

[App page](https://appshunter.io/ios/app/marble-math-junior/id528617628)

Practice essential math skills with a fun maze game. Collect numbers, solve problems, and earn rewards while navigating through challenging levels. Audio questions are available for emerging readers.

**Highlights:** Maze-based math problem solving, Audio questions for emerging readers, Customizable math concepts and difficulty, Unlimited user profiles, Progress tracking and high score pursuit, Reinforces Common Core Curriculum concepts

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎉 Fun and engaging
- 👍 Customizable levels and settings
- 💡 Unique marble-rolling gameplay
- 🧠 Helps improve math skills
- 🤩 Great for kids of all ages

**What reviewers complain about**

- 🐛 Occasional glitches and bugs
- 🤔 Some levels too simple for older kids
- 💤 Boring for more advanced users
- 🤖 Lack of intuitive controls for younger kids

**Reported bugs**

- Marble getting stuck in corners
- Next level button not working
- Scoring system not functioning properly
- Compatibility issues on older devices

**Requested features**

- More avatar customization options
- Ability to create custom levels
- Multiplayer or competitive modes
- Expanded math concepts beyond basic arithmetic


### STEMWerkz

[App page](https://appshunter.io/ios/app/stemwerkz-learn-through-play/id1545876287)

This app offers interactive STEM learning experiences for children aged 5-12. It features game-based learning, guided lessons, and live sessions with certified educators to develop problem-solving and critical-thinking skills.

**Highlights:** Multimodal learning activities, Game-based learning zone, Guided learning journey, Library of interactive lessons, Live interactive lessons with certified educators, Progress tracking and quizzes

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STEMWerkz Monthly | $11.99 | per month |
| Stemwerkz Yearly Sub | $119.99 | per year |


## Frequently asked questions

### Is Marble Math Junior free?

Marble Math Junior costs $3.99, with no in-app purchases.

### Is STEMWerkz free?

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

### Which has better reviews, Marble Math Junior or STEMWerkz?

STEMWerkz is rated higher. Marble Math Junior averages 4.6 out of 5 from 1.9K ratings, while STEMWerkz averages 5.0 from 4 ratings.

### Do Marble Math Junior or STEMWerkz have ads?

Neither Marble Math Junior nor STEMWerkz shows ads.

### Which is updated more often, Marble Math Junior or STEMWerkz?

Marble Math Junior ships an update every 4 months, and STEMWerkz fortnightly. Most recently, Marble Math Junior was updated on October 16, 2026 and STEMWerkz on October 5, 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.*