# ぐるどく vs Grow books

The clearest difference is update cadence: Grow books at every 5 days against ぐるどく's every 2 weeks. ぐるどく's advantage is iOS requirement (14.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ぐるどく sells 1 one-off in-app purchase and Grow books sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ぐるどく ships an update every 2 weeks, Grow books every 5 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ぐるどく | Grow books |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 66 MB | 98 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MAKASETE, Inc](https://appshunter.io/developer/1674779355) | [Aiju Kawase](https://appshunter.io/developer/6773546342) |

## What reviewers say

### ぐるどく

[App page](https://appshunter.io/ios/app/epub/id6465693672)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| コメントの閲覧・投稿機能の利用 | $5.99 | one-time |


### Grow books

[App page](https://appshunter.io/ios/app/grow-books-simple-book-notes/id6775886676)

This app helps you manage your personal library, tracking books read, to-read lists, and reading progress. Organize your collection visually, add notes and reviews, and view reading statistics. A premium plan offers advanced features for dedicated readers.

**Highlights:** Virtual bookshelf organization, Book search and automatic data import, Manual book registration, Reading status management, Notes and quotations logging, Book reviews and ratings, Reading statistics and monthly summaries

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $4.99 | per month |
| 3 Months Plan | $11.99 | per 3 months |
| Annual Plan | $49.99 | per year |


## Frequently asked questions

### Is ぐるどく free?

ぐるどく is free to download, with in-app purchases available.

### Is Grow books free?

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

### Do ぐるどく or Grow books have ads?

Neither ぐるどく nor Grow books shows ads.

### Which is updated more often, ぐるどく or Grow books?

ぐるどく ships an update every 2 weeks, and Grow books every 5 days. Most recently, ぐるどく was updated on October 27, 2026 and Grow books on October 28, 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.*