# 행복날개수련원 vs WHOYOU (후유)

The clearest difference is update cadence: 행복날개수련원 at every 2 months against WHOYOU (후유)'s every 3 months. WHOYOU (후유)'s advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

행복날개수련원 ships an update every 2 months, WHOYOU (후유) every 3 months. The most recent releases landed on October 9, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 행복날개수련원 | WHOYOU (후유) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 39 MB | 16 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Wings of happiness training center](https://appshunter.io/developer/1633466350) | [TELUS Health (Korea) Co., Ltd.](https://appshunter.io/developer/1138880709) |

## What reviewers say

### 행복날개수련원

[App page](https://appshunter.io/ios/app/id1633466348)

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

**In-app purchases:** none


### WHOYOU (후유)

[App page](https://appshunter.io/ios/app/whoyou/id1671479927)

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

**In-app purchases:** none


## Frequently asked questions

### Is 행복날개수련원 free?

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

### Is WHOYOU (후유) free?

WHOYOU (후유) is free to download, with no in-app purchases.

### Do 행복날개수련원 or WHOYOU (후유) have ads?

Neither 행복날개수련원 nor WHOYOU (후유) shows ads.

### Which is updated more often, 행복날개수련원 or WHOYOU (후유)?

행복날개수련원 ships an update every 2 months, and WHOYOU (후유) every 3 months. Most recently, 행복날개수련원 was updated on October 9, 2026 and WHOYOU (후유) on October 20, 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.*