# Cat's Library vs 북메이트 Bookmate

The clearest difference is in-app purchases: 북메이트 Bookmate at none against Cat's Library's 7. 북메이트 Bookmate also leads on ads (none vs shown) and review sentiment (100% vs 87%). Cat's Library's advantage is iOS requirement (16.6 vs 26.2). On price, update cadence 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. 북메이트 Bookmate asks for nothing beyond the download.

Cat's Library ships an update every 4 days, 북메이트 Bookmate weekly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Cat's Library | 북메이트 Bookmate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (44 ratings)](https://appshunter.io/ios/app/cats-library-book-tracker/id6752113848/reviews)** | — |
| Number of ratings | **44** | — |
| Positive reviews | 86.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 237 MB | 37 MB |
| Requires iOS | **16.6** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lo-Fi Labs Inc.](https://appshunter.io/developer/6796905768) | [chaerim han](https://appshunter.io/developer/6785902756) |

## What reviewers say

### Cat's Library

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

Enhance your reading journey with a charming companion. Track your progress, organize your library, and collect favorite quotes. Customize your reading space and share your literary adventures with friends.

**Highlights:** Reading timer with cat companion, Organize books by status, Barcode book registration, Quote collection with OCR, Social bookshelf sharing, Customizable cat outfits and room themes, Reading recap and statistics

**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 |


### 북메이트 Bookmate

[App page](https://appshunter.io/ios/app/bookmate/id6785902754)

This app helps you manage your reading by allowing you to search for unknown words encountered while reading, save them by book, and record notes, quotes, and reviews. You can also track your reading progress and explore other users' bookshelves.

**Highlights:** Instant word search while reading, Save and organize words by book, Track reading progress, Record book-specific notes and quotes, Write and view book reviews, Explore other users' bookshelves, Customizable app themes

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

**In-app purchases:** none


## Frequently asked questions

### Is Cat's Library free?

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

### Is 북메이트 Bookmate free?

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

### Do Cat's Library or 북메이트 Bookmate have ads?

Cat's Library shows ads; 북메이트 Bookmate does not.

### Which is updated more often, Cat's Library or 북메이트 Bookmate?

Cat's Library ships an update every 4 days, and 북메이트 Bookmate weekly. Most recently, Cat's Library was updated on October 30, 2026 and 북메이트 Bookmate on October 24, 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.*