# einstein Junior vs STEM Buddies

The clearest difference is review sentiment: STEM Buddies at 100% against einstein Junior's 0%. STEM Buddies also leads on update cadence (every 5 months vs every 24 months) and ratings volume (40 vs 1). einstein Junior's advantage is in-app purchases (none vs 14) and rating (5.0 vs 4.7). On price, ads and device support there is nothing between them.

Both are free to download. STEM Buddies sells 14 in-app purchases, starting at $5.99 per 6 months. einstein Junior asks for nothing beyond the download.

einstein Junior holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: STEM Buddies has 40 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of einstein Junior's written reviews are positive against 100% of STEM Buddies's, so the app with the better star average is not the one people write more warmly about.

einstein Junior ships an update every 24 months, STEM Buddies every 5 months. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | einstein Junior | STEM Buddies |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/einstein-junior/id949923920/reviews)** | [4.7 (40 ratings)](https://appshunter.io/ios/app/stem-buddieskids-learning-app/id1380413683/reviews) |
| Number of ratings | 1 | **40** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 5 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 107 MB | 487 MB |
| Requires iOS | **7.1** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fourier Education](https://appshunter.io/developer/510661572) | [Sindyan Educational Media FZ-LLC](https://appshunter.io/developer/1358132862) |

## What reviewers say

### einstein Junior

[App page](https://appshunter.io/ios/app/einstein-junior/id949923920)

Explore the world and learn about science through interactive games. This app uses device sensors to help you investigate your surroundings and discover new things. Embark on quests to understand habitats and develop your inner scientist.

**Highlights:** Sensor-based learning, Interactive games, World exploration, Habitat quests, Develop scientific understanding

**Features:** macOS Compatibility

**In-app purchases:** none


### STEM Buddies

[App page](https://appshunter.io/ios/app/stem-buddieskids-learning-app/id1380413683)

This app offers an interactive and engaging way for children aged 4-9 to learn about science. It features animated stories, quizzes, and games covering seven key STEM themes, designed by experts and certified for educational quality.

**Highlights:** Animated STEM tales, Interactive quizzes, Kid learning games, Certificates of Completion, Artful coloring sheets, Science for kids videos

**Features:** macOS Compatibility

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Semi-Annual Subscription | $5.99 | per 6 months |
| Annual Subscription | $9.99 | per year |
| Gravity | $0.99 | one-time |
| Flying | $1.99 | one-time |
| Sound | $1.99 | one-time |
| Water Cycle | $1.99 | one-time |
| Germs | $1.99 | one-time |
| Muscles | $1.99 | one-time |
| Healthy Diet | $1.99 | one-time |
| Buildings | $1.99 | one-time |
| Solar System | $1.99 | one-time |
| Coding | $1.99 | one-time |
| Level One | $4.99 | one-time |
| Level Two | $4.99 | one-time |


## Frequently asked questions

### Is einstein Junior free?

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

### Is STEM Buddies free?

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

### Which has better reviews, einstein Junior or STEM Buddies?

einstein Junior is rated higher. einstein Junior averages 5.0 out of 5 from 1 ratings, while STEM Buddies averages 4.7 from 40 ratings.

### Do einstein Junior or STEM Buddies have ads?

Neither einstein Junior nor STEM Buddies shows ads.

### Which is updated more often, einstein Junior or STEM Buddies?

einstein Junior ships an update every 24 months, and STEM Buddies every 5 months. Most recently, einstein Junior was updated on October 11, 2026 and STEM Buddies on October 12, 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.*