# scrolly vs Koodo Reader

The clearest difference is rating: scrolly at 5.0 against Koodo Reader's 3.8. scrolly also leads on in-app purchases (none vs 2) and update cadence (weekly vs monthly). Koodo Reader's advantage is iOS requirement (15.5 vs 17.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Koodo Reader sells 2 one-off in-app purchases. scrolly asks for nothing beyond the download.

scrolly holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 9 and 5 respectively. Written reviews point the same way: 86% of scrolly's written reviews are positive against 82% of Koodo Reader's.

scrolly ships an update weekly, Koodo Reader monthly. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | scrolly | Koodo Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/scrolly-cute-pdf-ebook-reader/id6738710724/reviews)** | [3.8 (5 ratings)](https://appshunter.io/ios/app/koodo-reader/id6744887779/reviews) |
| Number of ratings | **9** | 5 |
| Positive reviews | **85.7% of reviews** | 82.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free | Free |
| Size | 9 MB | 72 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [totally important LLC](https://appshunter.io/developer/1759244146) | [亮 郭](https://appshunter.io/developer/1803973300) |

## What reviewers say

### 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


### Koodo Reader

[App page](https://appshunter.io/ios/app/koodo-reader/id6744887779)

Manage and read your local e-books with a powerful reader supporting numerous formats. Seamlessly integrate with cloud storage and NAS for cross-platform access. Customize your reading experience with adjustable fonts, themes, and optimized layouts.

**Highlights:** Broad e-book format support, Cloud and NAS integration, Cross-device library sync, Customizable reading interface, AI-powered dictionary and translation, Night mode and multiple themes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 million Character Quota | $4.99 | one-time |
| Koodo Reader Pro (1 Year) | $5.99 | one-time |


## Frequently asked questions

### Is scrolly free?

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

### Is Koodo Reader free?

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

### Which has better reviews, scrolly or Koodo Reader?

scrolly is rated higher. scrolly averages 5.0 out of 5 from 9 ratings, while Koodo Reader averages 3.8 from 5 ratings.

### Do scrolly or Koodo Reader have ads?

Neither scrolly nor Koodo Reader shows ads.

### Which is updated more often, scrolly or Koodo Reader?

scrolly ships an update weekly, and Koodo Reader monthly. Most recently, scrolly was updated on October 4, 2026 and Koodo Reader on October 16, 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.*