# XR책놀이 vs Sayello

The clearest difference is update cadence: Sayello at daily against XR책놀이's every 6 weeks. XR책놀이's advantage is iOS requirement (12.0 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.

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

## The numbers

| Metric | XR책놀이 | Sayello |
| --- | --- | --- |
| 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 | **Daily** |
| Monetization | Free | — |
| Size | 802 MB | 233 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Library for Children and Young Adults](https://appshunter.io/developer/1557625598) | [Hodoo Labs Co., Ltd.](https://appshunter.io/developer/1529823937) |

## 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


### Sayello

[App page](https://appshunter.io/ios/app/sayello/id6797434465)

**In-app purchases:** none


## Frequently asked questions

### Is XR책놀이 free?

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

### Is Sayello free?

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

### Do XR책놀이 or Sayello have ads?

Neither XR책놀이 nor Sayello shows ads.

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

XR책놀이 ships an update every 6 weeks, and Sayello daily. Most recently, XR책놀이 was updated on October 6, 2026 and Sayello 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.*