# 웅진씽크빅 라운지 vs marimo Knock

The clearest difference is update cadence: marimo Knock at every 5 days against 웅진씽크빅 라운지's every 6 weeks. 웅진씽크빅 라운지'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.

웅진씽크빅 라운지 ships an update every 6 weeks, marimo Knock every 5 days. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 웅진씽크빅 라운지 | marimo Knock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 96.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 66 MB | 22 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Woongjin Thinkbig Co., Ltd.](https://appshunter.io/developer/1614968450) | [SeongChan Joo](https://appshunter.io/developer/6795682041) |

## What reviewers say

### 웅진씽크빅 라운지

[App page](https://appshunter.io/ios/app/id1108788139)

This platform uses AI to analyze a child's reading habits and learning data, providing personalized support for their academic growth. It offers a balanced learning environment from early childhood to middle school and exclusive benefits for members, including book purchases and direct communication with educators.

**Highlights:** AI reading habit analysis, Personalized learning support, Learning data analysis, Membership point redemption, Direct parent-teacher communication, Book and textbook purchases

**Features:** Vision Pro support

**In-app purchases:** none


### marimo Knock

[App page](https://appshunter.io/ios/app/marimo-knock/id6795682039)

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

**In-app purchases:** none


## Frequently asked questions

### Is 웅진씽크빅 라운지 free?

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

### Is marimo Knock free?

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

### Do 웅진씽크빅 라운지 or marimo Knock have ads?

Neither 웅진씽크빅 라운지 nor marimo Knock shows ads.

### Which is updated more often, 웅진씽크빅 라운지 or marimo Knock?

웅진씽크빅 라운지 ships an update every 6 weeks, and marimo Knock every 5 days. Most recently, 웅진씽크빅 라운지 was updated on October 20, 2026 and marimo Knock on October 10, 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.*