# 사락 vs 책갈피ReadNotes

The clearest difference is update cadence: 책갈피ReadNotes at weekly against 사락's every 2 months. 사락's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

사락 ships an update every 2 months, 책갈피ReadNotes weekly. The most recent releases landed on September 27, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 사락 | 책갈피ReadNotes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/24/id6447539223/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 69 MB | 1 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [예스24](https://appshunter.io/developer/360051539) | [ShinIl Heo](https://appshunter.io/developer/1723443938) |

## What reviewers say

### 사락

[App page](https://appshunter.io/ios/app/24/id6447539223)

Create a personalized reading journal, connect with fellow book lovers, and discover new titles. Track your reading progress, share reviews, and join or create book clubs. Earn rewards for your engagement.

**Highlights:** Personalized reading journal, Book review sharing, Book club participation and creation, Reading progress tracking, Content recommendations, Photo-based note-taking

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

**In-app purchases:** none


### 책갈피ReadNotes

[App page](https://appshunter.io/ios/app/readnotes/id6754544942)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 사락 free?

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

### Is 책갈피ReadNotes free?

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

### Do 사락 or 책갈피ReadNotes have ads?

Neither 사락 nor 책갈피ReadNotes shows ads.

### Which is updated more often, 사락 or 책갈피ReadNotes?

사락 ships an update every 2 months, and 책갈피ReadNotes weekly. Most recently, 사락 was updated on September 27, 2026 and 책갈피ReadNotes on September 20, 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.*