# 체크책 Check vs boook

The clearest difference is in-app purchases: 체크책 Check at none against boook's 2. 체크책 Check also leads on ads (none vs shown). boook's advantage is update cadence (every 2 days vs every 3 months) and iOS requirement (15.5 vs 26.2). On price and device support there is nothing between them.

Both are free to download. boook sells 2 in-app purchases, starting at $2.49 per month. 체크책 Check asks for nothing beyond the download.

체크책 Check ships an update every 3 months, boook every 2 days. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 체크책 Check | boook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 days** |
| Size | 31 MB | 86 MB |
| Requires iOS | 26.2 | **15.5** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SEOHYEON JO](https://appshunter.io/developer/1887795951) | [Ppom Studio](https://appshunter.io/developer/6785508462) |

## What reviewers say

### 체크책 Check

[App page](https://appshunter.io/ios/app/check-chaek/id6761102129)

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

**In-app purchases:** none


### boook

[App page](https://appshunter.io/ios/app/boook/id6785508460)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.49 | per month |
| Premium Yearly | $24.99 | per year |


## Frequently asked questions

### Is 체크책 Check free?

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

### Is boook free?

boook is free to download, with in-app purchases available.

### Do 체크책 Check or boook have ads?

boook shows ads; 체크책 Check does not.

### Which is updated more often, 체크책 Check or boook?

체크책 Check ships an update every 3 months, and boook every 2 days. Most recently, 체크책 Check was updated on October 7, 2026 and boook on October 16, 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.*