# Koob vs ChapterPals

The clearest difference is in-app purchases: ChapterPals at none against Koob's 6. ChapterPals also leads on ads (none vs shown) and update cadence (every 2 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Koob sells 6 in-app purchases, starting at $4.99 per month. ChapterPals asks for nothing beyond the download.

Koob ships an update monthly, ChapterPals every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Koob | ChapterPals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/chapterpals/id6789365856/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | — | Free |
| Size | 88 MB | 55 MB |
| Requires iOS | 15.5 | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 9+ |
| Developer | [Sebastian Jipa](https://appshunter.io/developer/1879762401) | [Edward Buchholz](https://appshunter.io/developer/1520514520) |

## What reviewers say

### Koob

[App page](https://appshunter.io/ios/app/koob-book-tracker-and-library/id6759604934)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Month | $4.99 | per month |
| Premium 6 Months | $24.99 | per 6 months |
| Premium 12 Months | $44.99 | per year |
| Mini | $2.99 | one-time |
| Plus | $6.99 | one-time |
| Max | $14.99 | one-time |


### ChapterPals

[App page](https://appshunter.io/ios/app/chapterpals/id6789365856)

This app helps you track your reading progress and manage your book club. Organize your reading lists, log progress, and discover new books. It also facilitates book club discussions, voting on the next read, and tracking member progress.

**Highlights:** Track reading progress by page or percent, Organize books into custom shelves, Set and track reading goals, Create and manage book clubs, Vote on next book selections, Chapter-based discussion threads, Daily 'Guess the Book' puzzle

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

**In-app purchases:** none


## Frequently asked questions

### Is Koob free?

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

### Is ChapterPals free?

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

### Do Koob or ChapterPals have ads?

Koob shows ads; ChapterPals does not.

### Which is updated more often, Koob or ChapterPals?

Koob ships an update monthly, and ChapterPals every 2 days. Most recently, Koob was updated on November 5, 2026 and ChapterPals on October 31, 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.*