# Clay Read vs BookWorm

The clearest difference is iOS requirement: Clay Read at 15.1 against BookWorm's 17.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Clay Read sells 2 in-app purchases, starting at $9.99 per month and BookWorm sells 5 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Clay Read ships an update every 2 weeks, BookWorm weekly. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Clay Read | BookWorm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (5 ratings)](https://appshunter.io/ios/app/bookworm-reading-tracker/id6761390761/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 158 MB | 24 MB |
| Requires iOS | **15.1** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [熙杰 尹](https://appshunter.io/developer/1556976877) | [Adam Markocki](https://appshunter.io/developer/1859270013) |

## What reviewers say

### Clay Read

[App page](https://appshunter.io/ios/app/clay-read/id6747111179)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro monthly | $9.99 | per month |
| Pro Yearly | $99.99 | per year |


### BookWorm

[App page](https://appshunter.io/ios/app/bookworm-reading-tracker/id6761390761)

This app helps you build a consistent reading habit by tracking books, ebooks, and audiobooks. Set daily goals, maintain reading streaks, and visualize your progress with a unique calendar. It offers effortless book addition, customizable themes, and cross-device synchronization.

**Highlights:** Track books, ebooks, and audiobooks, Set and achieve daily reading goals, Maintain reading streaks, Visualize progress with a reading calendar, Add books via search or barcode scan, Customizable themes (Light, Dark, Retro), Home Screen and Lock Screen widgets, iCloud sync across devices

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BookWorm Pro – Monthly | $4.99 | per month |
| BookWorm Pro – Annual | $29.99 | per year |
| An espresso | $2.99 | one-time |
| Coffee & croissant | $4.99 | one-time |
| A week of coffee | $9.99 | one-time |


## Frequently asked questions

### Is Clay Read free?

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

### Is BookWorm free?

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

### Do Clay Read or BookWorm have ads?

Neither Clay Read nor BookWorm shows ads.

### Which is updated more often, Clay Read or BookWorm?

Clay Read ships an update every 2 weeks, and BookWorm weekly. Most recently, Clay Read was updated on October 1, 2026 and BookWorm on October 7, 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.*