# 리더스(Readers) vs Cat's Library

The clearest difference is in-app purchases: 리더스(Readers) at none against Cat's Library's 7. 리더스(Readers) also leads on ads (none vs shown). Cat's Library's advantage is update cadence (every 4 days vs monthly) and rating (4.8 vs 4.6). On price, review sentiment, ratings volume and device support there is nothing between them.

Both are free to download. Cat's Library sells 7 in-app purchases, starting at $4.99 per month. 리더스(Readers) asks for nothing beyond the download.

Cat's Library holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 57 and 42 respectively. Written reviews complicate that: 94% of 리더스(Readers)'s written reviews are positive against 87% of Cat's Library's, so the app with the better star average is not the one people write more warmly about.

리더스(Readers) ships an update monthly, Cat's Library every 4 days. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 리더스(Readers) | Cat's Library |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (57 ratings)](https://appshunter.io/ios/app/readers/id1470113337/reviews) | **[4.8 (42 ratings)](https://appshunter.io/ios/app/cats-library-book-tracker/id6752113848/reviews)** |
| Number of ratings | **57** | 42 |
| Positive reviews | **94.1% of reviews** | 86.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 73 MB | 222 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ASSI Co.,Ltd](https://appshunter.io/developer/1499759845) | [Lo-Fi Labs Inc.](https://appshunter.io/developer/6796905768) |

## What reviewers say

### 리더스(Readers)

[App page](https://appshunter.io/ios/app/readers/id1470113337)

This app helps you enjoy reading by providing a space to connect with others, discover new books, and track your progress. It offers features for focused solo reading or engaging group discussions, making it easier to finish books and find inspiration.

**Highlights:** Discover book recommendations and insights from others, Read alone or join group reading sessions, Easily record memorable quotes and passages, Receive curated book content and related location suggestions, Track reading progress and stay motivated

**Features:** Vision Pro support

**In-app purchases:** none


### Cat's Library

[App page](https://appshunter.io/ios/app/cats-library-book-tracker/id6752113848)

Enhance your reading with adorable cats! Track your progress, organize your personal library, and collect favorite quotes. This app offers a unique, motivating, and healing reading experience.

**Highlights:** Read with cats and a reading timer, Organize books into To Read, Currently Reading, Read, Convenient book registration (search, manual, barcode), Collect and save favorite quotes with OCR, Track reading progress and history, Monthly reading activity calendar

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Book Butler Monthly Sub | $4.99 | per month |
| Pro Book Butler Annual Subscription | $29.99 | per year |
| Pro Book Butler Annual Subscription | $29.99 | per year |
| Coin Pack - 100 | $1.49 | one-time |
| Coin Pack - 500 | $6.49 | one-time |
| Coin Pack - 1000 | $9.99 | one-time |
| Pro Book Butler Lifetime Subs | $79.99 | one-time |


## Frequently asked questions

### Is 리더스(Readers) free?

리더스(Readers) is free to download, with no in-app purchases.

### Is Cat's Library free?

Cat's Library is free to download, with in-app purchases available.

### Which has better reviews, 리더스(Readers) or Cat's Library?

Cat's Library is rated higher. 리더스(Readers) averages 4.6 out of 5 from 57 ratings, while Cat's Library averages 4.8 from 42 ratings.

### Do 리더스(Readers) or Cat's Library have ads?

Cat's Library shows ads; 리더스(Readers) does not.

### Which is updated more often, 리더스(Readers) or Cat's Library?

리더스(Readers) ships an update monthly, and Cat's Library every 4 days. Most recently, 리더스(Readers) was updated on October 19, 2026 and Cat's Library 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.*