# Worm. vs World Book Ranking

The clearest difference is update cadence: Worm. at every 3 days against World Book Ranking's every 2 weeks. Worm. also leads on ratings volume (31 vs 1). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Worm. against 5.0 for World Book Ranking. That said, the two scores are not equally well evidenced: Worm. has 31 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Worm. ships an update every 3 days, World Book Ranking every 2 weeks. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Worm. | World Book Ranking |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (31 ratings)](https://appshunter.io/ios/app/worm/id6743779486/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/world-book-ranking/id6755462071/reviews) |
| Number of ratings | **31** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Monetization | Free | Free |
| Size | 32 MB | 49 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [David Burton](https://appshunter.io/developer/1804509855) | [Jisu Jung](https://appshunter.io/developer/1731788096) |

## What reviewers say

### Worm.

[App page](https://appshunter.io/ios/app/worm/id6743779486)

This app helps book lovers track their reading, discover new titles, and connect with a community of fellow readers. Organize your digital bookshelf, set reading goals, and engage in discussions about your favorite books.

**Highlights:** Digital bookshelf management, Personalized reading goals, Friend activity feed, Book discovery and recommendations, User profiles and statistics, Book reviews and discussions

**Features:** macOS Compatibility

**In-app purchases:** none


### World Book Ranking

[App page](https://appshunter.io/ios/app/world-book-ranking/id6755462071)

Explore global best-selling books by country and discover trending titles. View book details, covers, and bookmark your next read. Ideal for international readers and those curious about global literary trends.

**Highlights:** Global best-selling book rankings by country, Book details, covers, and author information, Bookmark favorite books and create reading lists, Multilingual automatic translation support, Discover trending international literature, Simple and intuitive user interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Worm. free?

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

### Is World Book Ranking free?

World Book Ranking is free to download, with no in-app purchases.

### Which has better reviews, Worm. or World Book Ranking?

Worm. and World Book Ranking are both rated 5.0 out of 5 on the App Store, from 31 and 1 ratings respectively.

### Do Worm. or World Book Ranking have ads?

Neither Worm. nor World Book Ranking shows ads.

### Which is updated more often, Worm. or World Book Ranking?

Worm. ships an update every 3 days, and World Book Ranking every 2 weeks. Most recently, Worm. was updated on October 10, 2026 and World Book Ranking on October 21, 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.*