# XR책놀이 vs K

XR책놀이 and K are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

XR책놀이 ships an update every 6 weeks, K every 4 weeks. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | XR책놀이 | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/xr/id1560940922/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 802 MB | 931 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Library for Children and Young Adults](https://appshunter.io/developer/1557625598) | [Ecoplay Co., Ltd.](https://appshunter.io/developer/1497635995) |

## What reviewers say

### XR책놀이

[App page](https://appshunter.io/ios/app/xr/id1560940922)

This app uses augmented and virtual reality to bring children's books to life in six languages. Interactive AR activities allow kids to explore story worlds, become characters, and learn about different cultures and languages through engaging play.

**Highlights:** Augmented reality story exploration, Virtual reality role-playing, Multilingual content (6 languages), Interactive AR activities, Educational storytelling, Character immersion

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-eco/id6748045174)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is XR책놀이 free?

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

### Is K free?

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

### Do XR책놀이 or K have ads?

Neither XR책놀이 nor K shows ads.

### Which is updated more often, XR책놀이 or K?

XR책놀이 ships an update every 6 weeks, and K every 4 weeks. Most recently, XR책놀이 was updated on October 24, 2026 and K on October 17, 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.*