# readin vs 시오리

The clearest difference is ads: 시오리 at none against readin's shown. readin's advantage is monetization model (ad-supported vs freemium) and iOS requirement (15.1 vs 17.3). On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Both are free to download. readin sells 2 in-app purchases, starting at $1.99 per month and 시오리 sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

readin ships an update every 4 days, 시오리 every 3 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | readin | 시오리 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 56 MB | 149 MB |
| Requires iOS | **15.1** | 17.3 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jeongbin Park](https://appshunter.io/developer/1819440689) | [ohttne](https://appshunter.io/developer/6788399225) |

## What reviewers say

### readin

[App page](https://appshunter.io/ios/app/readin-and/id6752389566)

This app helps you track your reading by stacking books visually, earning titles based on your reading height. It allows for quick book entry, sentence collection via photo-to-text, and provides reading statistics and goals. Perfect for those wanting to organize their reading and build a consistent habit.

**Highlights:** Visual book stacking for read books, Quick book entry by title search, Collect sentences by taking photos of text, Share collected sentences as images, Reading statistics and goal tracking, Earn reading titles based on book height

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| readin Pro 월간 | $1.99 | per month |
| readin Pro 연간 | $19.99 | per year |


### 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 readin free?

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

### Is 시오리 free?

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

### Do readin or 시오리 have ads?

readin shows ads; 시오리 does not.

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

readin ships an update every 4 days, and 시오리 every 3 days. Most recently, readin was updated on October 28, 2026 and 시오리 on October 28, 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.*