# 쌓음 vs boook

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

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

쌓음 ships an update every 2 days, boook every 2 months. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 쌓음 | boook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 2 months |
| Size | 82 MB | 88 MB |
| Requires iOS | 16.4 | **15.5** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DaeMyeong Lee](https://appshunter.io/developer/1537291429) | [Ppom Studio](https://appshunter.io/developer/6785508462) |

## What reviewers say

### 쌓음

[App page](https://appshunter.io/ios/app/id6774996607)

**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 쌓음 free?

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

### Is boook free?

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

### Do 쌓음 or boook have ads?

Both 쌓음 and boook show ads.

### Which is updated more often, 쌓음 or boook?

쌓음 ships an update every 2 days, and boook every 2 months. Most recently, 쌓음 was updated on October 25, 2026 and boook 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.*