# KyBook vs i2Reader Cloud

The clearest difference is review sentiment: KyBook at 71% against i2Reader Cloud's 48%. KyBook also leads on rating (4.4 vs 4.1) and update cadence (every 3 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. KyBook sells 2 one-off in-app purchases and i2Reader Cloud sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

KyBook holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: KyBook has 464 ratings behind it against 74, so its average is the more settled of the two. Written reviews point the same way: 71% of KyBook's written reviews are positive against 48% of i2Reader Cloud's.

KyBook ships an update every 3 weeks, i2Reader Cloud every 3 months. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | KyBook | i2Reader Cloud |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (464 ratings)](https://appshunter.io/ios/app/kybook-epubfb2pdfdjvu-reader/id673027171/reviews)** | [4.1 (74 ratings)](https://appshunter.io/ios/app/i2reader-cloud/id968326317/reviews) |
| Number of ratings | **464** | 74 |
| Positive reviews | **71.2% of reviews** | 48.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 50 MB | 37 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Konstantin Bukreev](https://appshunter.io/developer/547576207) | [Yuriy Melyushin](https://appshunter.io/developer/943454788) |

## What reviewers say

### KyBook

[App page](https://appshunter.io/ios/app/kybook-epubfb2pdfdjvu-reader/id673027171)

This app is a versatile e-book reader supporting a wide range of formats including EPUB, PDF, and audiobooks. It offers extensive customization for reading modes, cloud storage integration, and easy book organization. Advanced features like DJVU support and speed reading are available via in-app purchase.

**Highlights:** Supports EPUB, FB2, PDF, DJVU, CBR, CBZ, MP3, M4A, M4B formats, OPDS catalogs and cloud storage integration, Customizable reading mode settings, Book organization and cataloging, Text-to-speech and dictionary support, Speed Reading (RSVP)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro Version | $0.99 | one-time |
| Upgrade to Pro Version | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast and smooth performance
- 📚 Supports wide range of file formats
- 🔖 Good organization and categorization features
- 🔊 Excellent text-to-speech functionality

**What reviewers complain about**

- 🐛 Syncing issues, especially with Dropbox and Google Drive
- 🔍 Navigation and file management could be improved
- 💰 Paid version required for some key features
- 📢 Intrusive ads in free version
- 🔧 Lack of updates and support from developers

**Reported bugs**

- Crashes after recent iOS updates
- Text-to-speech function not working properly on newer devices
- Inability to delete books from the app
- Inconsistent theme and color customization behavior

**Requested features**

- Add support for more languages
- Improve image handling and layout
- Implement better annotation and highlighting tools
- Provide easier access to main library from subfolders
- Add ability to password protect individual books or folders


### i2Reader Cloud

[App page](https://appshunter.io/ios/app/i2reader-cloud/id968326317)

This app offers a comfortable reading experience with cloud synchronization across devices. Enjoy customizable layouts, interactive features like footnotes and dictionaries, and the ability to download books from various cloud services. It supports multiple formats and allows family sharing of libraries.

**Highlights:** iCloud synchronization for library and reading progress, Customizable book layout (fonts, colors, spacing), Download books from Dropbox, Google Drive, Yandex Disk, Interactive footnotes and dictionary support, Family sharing and user reading statistics, Supports FB2, EPUB, MOBI, DOC, PDF formats, Auto-scrolling and auto-page turning

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Auto-scroll | $0.99 | one-time |
| Seamless textures | $0.99 | one-time |
| Auto turning | $0.99 | one-time |
| Online translator | $1.99 | one-time |
| Removal of limitations | $3.99 | one-time |


## Frequently asked questions

### Is KyBook free?

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

### Is i2Reader Cloud free?

i2Reader Cloud is free to download, with in-app purchases available.

### Which has better reviews, KyBook or i2Reader Cloud?

KyBook is rated higher. KyBook averages 4.4 out of 5 from 464 ratings, while i2Reader Cloud averages 4.1 from 74 ratings.

### Do KyBook or i2Reader Cloud have ads?

Neither KyBook nor i2Reader Cloud shows ads.

### Which is updated more often, KyBook or i2Reader Cloud?

KyBook ships an update every 3 weeks, and i2Reader Cloud every 3 months. Most recently, KyBook was updated on September 25, 2026 and i2Reader Cloud on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*