# 캐츠비(Katsby) vs Wolkee

The clearest difference is in-app purchases: Wolkee at none against 캐츠비(Katsby)'s 6. Wolkee also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). 캐츠비(Katsby)'s advantage is update cadence (every 5 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. 캐츠비(Katsby) sells 6 one-off in-app purchases. Wolkee asks for nothing beyond the download.

캐츠비(Katsby) ships an update every 5 days, Wolkee every 2 months. The most recent releases landed on October 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 캐츠비(Katsby) | Wolkee |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/katsby/id6740863943/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 143 MB | 45 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KIRA & Company Inc.](https://appshunter.io/developer/1789524995) | [11monday](https://appshunter.io/developer/6780298122) |

## What reviewers say

### 캐츠비(Katsby)

[App page](https://appshunter.io/ios/app/katsby/id6740863943)

Learn financial and investment knowledge through fun quizzes and expert-designed content. Earn redeemable gems for completing lessons and engaging with economic news. Start your journey to becoming a smart investor.

**Highlights:** Daily 3-minute quizzes, Expert-designed curriculum, Gamified learning experience, Earn redeemable gems, Learn basic to advanced investing

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 스파크 | $0.49 | one-time |
| 20 스파크 | $0.99 | one-time |
| 30 스파크 | $1.99 | one-time |
| 50 스파크 | $1.99 | one-time |
| 100 스파크 | $2.99 | one-time |
| 200 스파크 | $5.99 | one-time |


### Wolkee

[App page](https://appshunter.io/ios/app/wolkee/id6780298120)

**In-app purchases:** none


## Frequently asked questions

### Is 캐츠비(Katsby) free?

캐츠비(Katsby) is free to download, with in-app purchases available.

### Is Wolkee free?

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

### Do 캐츠비(Katsby) or Wolkee have ads?

캐츠비(Katsby) shows ads; Wolkee does not.

### Which is updated more often, 캐츠비(Katsby) or Wolkee?

캐츠비(Katsby) ships an update every 5 days, and Wolkee every 2 months. Most recently, 캐츠비(Katsby) was updated on October 30, 2026 and Wolkee 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.*