# BookThoughts vs Clarify

The clearest difference is iOS requirement: BookThoughts at 13.4 against Clarify's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

BookThoughts ships an update every 6 weeks, Clarify monthly. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | BookThoughts | Clarify |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 46 MB | 37 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [婷雅 李](https://appshunter.io/developer/1729964855) | [Davinder Pal Singh](https://appshunter.io/developer/1879399441) |

## What reviewers say

### BookThoughts

[App page](https://appshunter.io/ios/app/bookthoughts/id6478048154)

**In-app purchases:** none


### Clarify

[App page](https://appshunter.io/ios/app/clarify-ai-ebook-reader/id6759541929)

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

**In-app purchases:** none


## Frequently asked questions

### Is BookThoughts free?

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

### Is Clarify free?

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

### Do BookThoughts or Clarify have ads?

Neither BookThoughts nor Clarify shows ads.

### Which is updated more often, BookThoughts or Clarify?

BookThoughts ships an update every 6 weeks, and Clarify monthly. Most recently, BookThoughts was updated on October 3, 2026 and Clarify on October 12, 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.*