# UniReader vs Kokzhiek Library

The clearest difference is in-app purchases: Kokzhiek Library at none against UniReader's 3. Kokzhiek Library also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. UniReader sells 3 in-app purchases, starting at $1.99 per month. Kokzhiek Library asks for nothing beyond the download.

UniReader ships an update every 3 weeks, Kokzhiek Library every 5 days. Both last shipped on October 11, 2026.

## The numbers

| Metric | UniReader | Kokzhiek Library |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 33 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guglielmo Pasa](https://appshunter.io/developer/417854438) | [Dias Zhumagaliyev](https://appshunter.io/developer/1611954008) |

## What reviewers say

### UniReader

[App page](https://appshunter.io/ios/app/unireader-multi-format-reader/id6759504986)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UniReader Premium Monthly | $1.99 | per month |
| UniReader Premium Yearly | $19.99 | per year |
| UniReader Premium Lifetime | $34.99 | one-time |


### Kokzhiek Library

[App page](https://appshunter.io/ios/app/kokzhiek-library/id6780876471)

Transform any file into a realistic book experience with page-turning effects and customizable reading modes. Organize your library, sync progress across devices, and enjoy comfortable reading with refined typography.

**Highlights:** Supports PDF, EPUB, FB2, TXT formats, Realistic page-turning animation, Multiple reading modes (page curl, swipe, scroll), Four reading themes, Personalized library with covers, Cross-device sync for progress and bookmarks, Bookmark and search functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is UniReader free?

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

### Is Kokzhiek Library free?

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

### Do UniReader or Kokzhiek Library have ads?

Neither UniReader nor Kokzhiek Library shows ads.

### Which is updated more often, UniReader or Kokzhiek Library?

UniReader ships an update every 3 weeks, and Kokzhiek Library every 5 days. Most recently, UniReader was updated on October 11, 2026 and Kokzhiek Library on October 11, 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.*