# STEM JUNIOR vs Lâm Tỳ Ni

The clearest difference is in-app purchases: Lâm Tỳ Ni at none against STEM JUNIOR's 4. 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. Lâm Tỳ Ni asks for nothing beyond the download.

STEM JUNIOR ships an update every 3 weeks, Lâm Tỳ Ni monthly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | STEM JUNIOR | Lâm Tỳ Ni |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 291 MB | 51 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INSTITUTE VIETSTEM COMPANY LIMITED](https://appshunter.io/developer/1484787821) | [Nguyen Van Truong](https://appshunter.io/developer/1483255107) |

## 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 |


### Lâm Tỳ Ni

[App page](https://appshunter.io/ios/app/lam-ty-ni/id6751743891)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is STEM JUNIOR free?

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

### Is Lâm Tỳ Ni free?

Lâm Tỳ Ni is free to download, with no in-app purchases.

### Do STEM JUNIOR or Lâm Tỳ Ni have ads?

Neither STEM JUNIOR nor Lâm Tỳ Ni shows ads.

### Which is updated more often, STEM JUNIOR or Lâm Tỳ Ni?

STEM JUNIOR ships an update every 3 weeks, and Lâm Tỳ Ni monthly. Most recently, STEM JUNIOR was updated on October 25, 2026 and Lâm Tỳ Ni on October 24, 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.*