# WhyTube(와이튜브)_과학 동영상 vs fewfew

The clearest difference is in-app purchases: fewfew at none against WhyTube(와이튜브)_과학 동영상's 10. WhyTube(와이튜브)_과학 동영상's advantage is ads (none vs shown) and iOS requirement (6.1 vs 18.2). On price, update cadence and device support there is nothing between them.

Both are free to download. WhyTube(와이튜브)_과학 동영상 sells 10 one-off in-app purchases. fewfew asks for nothing beyond the download.

WhyTube(와이튜브)_과학 동영상 ships an update every 6 weeks, fewfew every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | WhyTube(와이튜브)_과학 동영상 | fewfew |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 101 MB | 220 MB |
| Requires iOS | **6.1** | 18.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [(주)예림당](https://appshunter.io/developer/565049166) | [changin oh](https://appshunter.io/developer/1885513791) |

## What reviewers say

### WhyTube(와이튜브)_과학 동영상

[App page](https://appshunter.io/ios/app/whytube/id992767988)

Access a vast library of over 600 science video lessons, complementing a popular children's book series. Enjoy daily free videos and a full series on space, all accessible on mobile devices.

**Highlights:** Extensive science video library, Complements popular book series, Daily free video content, Full space series available, Accessible on mobile devices, Linked to book pages

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1권~5권 | $0.99 | one-time |
| 11권~15권 | $0.99 | one-time |
| 21권~25권 | $0.99 | one-time |
| 26권~30권 | $0.99 | one-time |
| 31권~35권 | $0.99 | one-time |
| 36권~40권 | $0.99 | one-time |
| 41권~45권 | $0.99 | one-time |
| 46권~50권 | $0.99 | one-time |
| 51권~55권 | $1.99 | one-time |
| 1권~50권 | $9.99 | one-time |


### fewfew

[App page](https://appshunter.io/ios/app/fewfew/id6760651226)

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

**In-app purchases:** none


## Frequently asked questions

### Is WhyTube(와이튜브)_과학 동영상 free?

WhyTube(와이튜브)_과학 동영상 is free to download, with in-app purchases available.

### Is fewfew free?

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

### Do WhyTube(와이튜브)_과학 동영상 or fewfew have ads?

fewfew shows ads; WhyTube(와이튜브)_과학 동영상 does not.

### Which is updated more often, WhyTube(와이튜브)_과학 동영상 or fewfew?

WhyTube(와이튜브)_과학 동영상 ships an update every 6 weeks, and fewfew every 2 months. Most recently, WhyTube(와이튜브)_과학 동영상 was updated on October 24, 2026 and fewfew 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.*