# DadokBook vs 시오리

The clearest difference is in-app purchases: DadokBook at none against 시오리's 10. 시오리's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 시오리 sells 10 one-off in-app purchases. DadokBook asks for nothing beyond the download.

DadokBook ships an update weekly, 시오리 every 3 days. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | DadokBook | 시오리 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 102 MB | 149 MB |
| Requires iOS | **17.0** | 17.3 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [WANKI KIM](https://appshunter.io/developer/1708798516) | [ohttne](https://appshunter.io/developer/6788399225) |

## What reviewers say

### DadokBook

[App page](https://appshunter.io/ios/app/dadokbook-reading-tracker/id6782623269)

**In-app purchases:** none


### 시오리

[App page](https://appshunter.io/ios/app/and/id6788732084)

Record your reading progress, favorite quotes, and notes for each book. Create a personal reading feed with features like a sentence scanner, character relationship maps, and a focus timer.  Sync your reading data across devices.

**Highlights:** Organize books by status (reading, finished, want to read), Record quotes, notes, photos, and sticky notes per book, Scan book sentences into text, Create sentence collages with photos, Map character relationships, Track reading habits with logs and timers, Save unfamiliar words to a vocabulary list

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 포근 메모지 테마 | $0.99 | one-time |
| 과일 메모지 테마 | $0.99 | one-time |
| 반짝 메모지 테마 | $0.99 | one-time |
| 도트 메모지 테마 | $0.99 | one-time |
| 도트2 메모지 테마 | $0.99 | one-time |
| 프레임 메모지 테마 | $0.99 | one-time |
| 그라데이션 메모지 테마 | $0.99 | one-time |
| 모양 메모지 테마 | $0.99 | one-time |
| 뽀얀 메모지 테마 | $0.99 | one-time |
| 뮤트 메모지 테마 | $0.99 | one-time |


## Frequently asked questions

### Is DadokBook free?

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

### Is 시오리 free?

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

### Do DadokBook or 시오리 have ads?

DadokBook shows ads; 시오리 does not.

### Which is updated more often, DadokBook or 시오리?

DadokBook ships an update weekly, and 시오리 every 3 days. Most recently, DadokBook was updated on October 25, 2026 and 시오리 on October 27, 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.*