# PDF & Document Library vs Oku

The clearest difference is ads: Oku at none against PDF & Document Library's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | PDF & Document Library | Oku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Size | 8 MB | 43 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Salih ONUS](https://appshunter.io/developer/6775990804) | [BBSOFT DIGITAL](https://appshunter.io/developer/6819808567) |

## What reviewers say

### PDF & Document Library

[App page](https://appshunter.io/ios/app/pdf-and-document-library/id6787750697)

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

**In-app purchases:** none


### Oku

[App page](https://appshunter.io/ios/app/oku-your-reading-room/id6819808565)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF & Document Library free?

PDF & Document Library is free to download, with no in-app purchases.

### Is Oku free?

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

### Do PDF & Document Library or Oku have ads?

PDF & Document Library shows ads; Oku does not.

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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.*