# Book AI vs Second Reading

The clearest difference is in-app purchases: Second Reading at none against Book AI's 1. Second Reading also leads on ads (none vs shown) and rating (5.0 vs 4.6). Book AI's advantage is ratings volume (101 vs 1) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Book AI sells 1 in-app purchase, starting at $29.99 per year. Second Reading asks for nothing beyond the download.

Second Reading holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Book AI has 101 ratings behind it against 1, so its average is the more settled of the two.

Book AI ships an update monthly, Second Reading every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Book AI | Second Reading |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (101 ratings)](https://appshunter.io/ios/app/book-ai-auto-summaries-audio/id1665356140/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/second-reading/id6795706642/reviews)** |
| Number of ratings | **101** | 1 |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 30 MB | 8 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Fatmata Bangura](https://appshunter.io/developer/1677391770) | [Nicholas Kinloch](https://appshunter.io/developer/6795706644) |

## What reviewers say

### Book AI

[App page](https://appshunter.io/ios/app/book-ai-auto-summaries-audio/id1665356140)

Access over 150 million book summaries with key insights and personalized recommendations. Choose your desired level of detail for each summary and discover new perspectives from bestsellers across various genres. Sharpen professional skills and grow with impactful self-improvement titles.

**Highlights:** 150 million book summaries, Key insights and useful ideas, Customizable detail levels, Personalized AI recommendations, Business and self-improvement focus, Audio summaries available

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Book AI: Read Summaries | $29.99 | per year |


### Second Reading

[App page](https://appshunter.io/ios/app/second-reading/id6795706642)

This app imports your Kindle highlights and organizes them into a searchable library and a daily curated page. It offers a customizable home screen widget to display your favorite quotes. All your data is stored locally or synced via iCloud, with a strong focus on user privacy.

**Highlights:** Import Kindle highlights, Customizable home screen widget, Searchable library, Daily curated quote page, Cross-device sync via iCloud, Privacy-focused, no account needed

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

**In-app purchases:** none


## Frequently asked questions

### Is Book AI free?

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

### Is Second Reading free?

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

### Which has better reviews, Book AI or Second Reading?

Second Reading is rated higher. Book AI averages 4.6 out of 5 from 101 ratings, while Second Reading averages 5.0 from 1 ratings.

### Do Book AI or Second Reading have ads?

Book AI shows ads; Second Reading does not.

### Which is updated more often, Book AI or Second Reading?

Book AI ships an update monthly, and Second Reading every 2 weeks. Most recently, Book AI was updated on October 24, 2026 and Second Reading on October 25, 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.*