# 叫叫绘本 vs Koala Study

The clearest difference is in-app purchases: Koala Study at none against 叫叫绘本's 10. Koala Study also leads on update cadence (every 4 days vs every 3 weeks). 叫叫绘本's advantage is iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. 叫叫绘本 sells 10 one-off in-app purchases. Koala Study asks for nothing beyond the download.

叫叫绘本 ships an update every 3 weeks, Koala Study every 4 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 叫叫绘本 | Koala Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (10 ratings)](https://appshunter.io/ios/app/id1491123490/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 60.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 229 MB | 13 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Shushan Youlu Technology Co., Ltd.](https://appshunter.io/developer/1748698649) | [Li Chen](https://appshunter.io/developer/6785281130) |

## What reviewers say

### 叫叫绘本

[App page](https://appshunter.io/ios/app/id1491123490)

A high-quality digital library for children aged 3-12, featuring award-winning and original interactive picture books. It aims to foster a love for reading and support comprehensive development in areas like emotional intelligence and habit formation.

**Highlights:** Award-winning and original picture books, Interactive reading experience, Covers 9 key learning categories, Personalized 365-day reading plans, Includes popular IPs like Disney and Thomas, Eye protection mode with usage limits, Multi-device account sharing

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 小鸡叫叫绘本永久阅读券 | $9.99 | one-time |
| 绘本年卡直降70 | $29.99 | one-time |
| 绘本买1送1直降20 | $34.99 | one-time |
| 买一年赠一年 | $39.99 | one-time |
| 买两年赠两年 | $49.99 | one-time |
| 绘本买2送2直降40 | $49.99 | one-time |
| 开学特惠绘本买2年送2年 | $49.99 | one-time |
| 绘本618限定双享卡 | $69.99 | one-time |
| 成长启蒙绘本卡 | $69.99 | one-time |
| 启蒙绘本卡 | $69.99 | one-time |


### Koala Study

[App page](https://appshunter.io/ios/app/koala-study/id6799832548)

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

**In-app purchases:** none


## Frequently asked questions

### Is 叫叫绘本 free?

叫叫绘本 is free to download, with in-app purchases available.

### Is Koala Study free?

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

### Do 叫叫绘本 or Koala Study have ads?

Neither 叫叫绘本 nor Koala Study shows ads.

### Which is updated more often, 叫叫绘本 or Koala Study?

叫叫绘本 ships an update every 3 weeks, and Koala Study every 4 days. Most recently, 叫叫绘本 was updated on November 7, 2026 and Koala Study on October 31, 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.*