# 자연이 소곤소곤 3D vs [4A단계] 스마트 이야기독서

The clearest difference is update cadence: [4A단계] 스마트 이야기독서 at every 5 months against 자연이 소곤소곤 3D's every 27 months. 자연이 소곤소곤 3D's advantage is iOS requirement (9.0 vs 12.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

자연이 소곤소곤 3D ships an update every 27 months, [4A단계] 스마트 이야기독서 every 5 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 자연이 소곤소곤 3D | [4A단계] 스마트 이야기독서 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 565 MB | 361 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KYOWON CO.,LTD](https://appshunter.io/developer/402661067) | [(주)교원구몬](https://appshunter.io/developer/1800639087) |

## What reviewers say

### 자연이 소곤소곤 3D

[App page](https://appshunter.io/ios/app/3d/id1229557110)

Explore and learn about various animals in vivid 3D. Observe their behaviors, habitats, and unique characteristics through interactive features. Discover animals that visit your home and delve into their ecological roles.

**Highlights:** Observe living 3D animals, Discover animals in your home, Study animal ecology and behavior, Explore animal habitats in 360 degrees, Recognize animals via camera mode

**Features:** macOS Compatibility

**In-app purchases:** none


### [4A단계] 스마트 이야기독서

[App page](https://appshunter.io/ios/app/4a/id1432417350)

Engage in fun post-reading activities with fairy tale scenes. Scan illustrated cards to unlock content and begin learning immediately. Explore stories like 'Were You Surprised?' and 'Chika Puka Brush Your Teeth'.

**Highlights:** Interactive fairy tale scenes, Post-reading activities, Illustrated card recognition, Immediate learning start, Camera mode for card scanning, Multiple story themes

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

**In-app purchases:** none


## Frequently asked questions

### Is 자연이 소곤소곤 3D free?

자연이 소곤소곤 3D is free to download, with no in-app purchases.

### Is [4A단계] 스마트 이야기독서 free?

[4A단계] 스마트 이야기독서 is free to download, with no in-app purchases.

### Do 자연이 소곤소곤 3D or [4A단계] 스마트 이야기독서 have ads?

Neither 자연이 소곤소곤 3D nor [4A단계] 스마트 이야기독서 shows ads.

### Which is updated more often, 자연이 소곤소곤 3D or [4A단계] 스마트 이야기독서?

자연이 소곤소곤 3D ships an update every 27 months, and [4A단계] 스마트 이야기독서 every 5 months. Most recently, 자연이 소곤소곤 3D was updated on October 2, 2026 and [4A단계] 스마트 이야기독서 on October 6, 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.*