# Why? 과학 vs Genie's Math Farm

The clearest difference is in-app purchases: Genie's Math Farm at none against Why? 과학's 11. Genie's Math Farm also leads on device support (3 vs 1). Why? 과학's advantage is iOS requirement (6.0 vs 11.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Why? 과학 sells 11 one-off in-app purchases. Genie's Math Farm asks for nothing beyond the download.

Why? 과학 ships an update monthly, Genie's Math Farm every 2 months. Both last shipped on October 13, 2026.

## The numbers

| Metric | Why? 과학 | Genie's Math Farm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/why/id433116895/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 15 MB | 322 MB |
| Requires iOS | **6.0** | 11.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [(주)예림당](https://appshunter.io/developer/565049166) | [Woongjin Thinkbig Co., Ltd.](https://appshunter.io/developer/1614968450) |

## What reviewers say

### Why? 과학

[App page](https://appshunter.io/ios/app/why/id433116895)

This app makes complex science topics easy and fun for children through engaging comics and vivid illustrations. It aligns with elementary school science curricula, making it a great study aid. Continuous content updates ensure an ever-growing library of scientific exploration.

**Highlights:** Engaging comic format, Vivid illustrations and real photos, Curriculum-aligned content, Expert-reviewed science information, Continuous content updates, International export success

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Why 우주 | $5.99 | one-time |
| Why 인체 | $5.99 | one-time |
| Why 바다 | $5.99 | one-time |
| Why 곤충 | $5.99 | one-time |
| Why 사춘기와 성 | $5.99 | one-time |
| Why 공룡 | $5.99 | one-time |
| Why 똥 | $5.99 | one-time |
| Why 외계인과 UFO | $5.99 | one-time |
| Why 독있는 동식물 | $5.99 | one-time |
| Why 응급처치 | $5.99 | one-time |
| Why 전기전자 | $5.99 | one-time |


### Genie's Math Farm

[App page](https://appshunter.io/ios/app/genies-math-farm/id1634758794)

A farming simulation game designed for children that integrates math problem-solving. Players help save a farm by solving math challenges to generate energy, which is then used to grow crops, raise animals, and manage a virtual market. The game adapts math problems to a child's academic level.

**Highlights:** Math problems adapt to academic achievement, Farming simulation gameplay, Virtual merchandising and market operations, Character customization, Farm and house decoration, AI-powered learning system

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Why? 과학 free?

Why? 과학 is free to download, with in-app purchases available.

### Is Genie's Math Farm free?

Genie's Math Farm is free to download, with no in-app purchases.

### Do Why? 과학 or Genie's Math Farm have ads?

Neither Why? 과학 nor Genie's Math Farm shows ads.

### Which is updated more often, Why? 과학 or Genie's Math Farm?

Why? 과학 ships an update monthly, and Genie's Math Farm every 2 months. Most recently, Why? 과학 was updated on October 13, 2026 and Genie's Math Farm on October 13, 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.*