# BookThoughts vs scrolly

The clearest difference is update cadence: scrolly at weekly against BookThoughts's every 6 weeks. BookThoughts's advantage is iOS requirement (13.4 vs 17.0). On price, ads, in-app purchases and device support 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, scrolly weekly. The most recent releases landed on September 15, 2026 and July 24, 2026 respectively.

## The numbers

| Metric | BookThoughts | scrolly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/scrolly-cute-pdf-ebook-reader/id6738710724/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Free |
| Size | 46 MB | 9 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [婷雅 李](https://appshunter.io/developer/1729964855) | [totally important LLC](https://appshunter.io/developer/1759244146) |

## What reviewers say

### BookThoughts

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

**In-app purchases:** none


### scrolly

[App page](https://appshunter.io/ios/app/scrolly-cute-pdf-ebook-reader/id6738710724)

Transform your PDF reading with a delightful experience. Customize text size and themes, save your progress with bookmarks, and enjoy a unique vertical scrolling mode. Perfect for books, papers, articles, and textbooks.

**Highlights:** Customizable text size, Theme selection, Bookmark saving, Vertical snap-to-scroll, Read books, papers, articles, textbooks

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BookThoughts free?

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

### Is scrolly free?

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

### Do BookThoughts or scrolly have ads?

Neither BookThoughts nor scrolly shows ads.

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

BookThoughts ships an update every 6 weeks, and scrolly weekly. Most recently, BookThoughts was updated on September 15, 2026 and scrolly on July 24, 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.*