# STEM JUNIOR vs StudyKid

The clearest difference is in-app purchases: StudyKid at none against STEM JUNIOR's 4. StudyKid also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. STEM JUNIOR sells 4 one-off in-app purchases. StudyKid asks for nothing beyond the download.

STEM JUNIOR ships an update every 3 weeks, StudyKid fortnightly. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | STEM JUNIOR | StudyKid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 291 MB | 50 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INSTITUTE VIETSTEM COMPANY LIMITED](https://appshunter.io/developer/1484787821) | [Tuan Nguyen](https://appshunter.io/developer/1892950219) |

## What reviewers say

### STEM JUNIOR

[App page](https://appshunter.io/ios/app/stem-junior/id1484787823)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6 Months | $26.99 | one-time |
| 6 Months | $29.99 | one-time |
| 12 Months | $34.99 | one-time |
| 12 Months | $36.99 | one-time |


### StudyKid

[App page](https://appshunter.io/ios/app/studykid-study-games/id6762109389)

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

**In-app purchases:** none


## Frequently asked questions

### Is STEM JUNIOR free?

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

### Is StudyKid free?

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

### Do STEM JUNIOR or StudyKid have ads?

Neither STEM JUNIOR nor StudyKid shows ads.

### Which is updated more often, STEM JUNIOR or StudyKid?

STEM JUNIOR ships an update every 3 weeks, and StudyKid fortnightly. Most recently, STEM JUNIOR was updated on September 11, 2026 and StudyKid on September 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.*