# Readium vs PDF Reader, Read Aloud

The clearest difference is ads: Readium at none against PDF Reader, Read Aloud's shown. PDF Reader, Read Aloud's advantage is update cadence (daily vs weekly). 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.

Readium ships an update weekly, PDF Reader, Read Aloud daily. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Readium | PDF Reader, Read Aloud |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/readium-text-to-speech-pdf/id6798495748/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Daily** |
| Monetization | Free | — |
| Size | 109 MB | 10 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Raquib Ul Alam](https://appshunter.io/developer/6798495750) | [Namik Ersun](https://appshunter.io/developer/1435814036) |

## What reviewers say

### Readium

[App page](https://appshunter.io/ios/app/readium-text-to-speech-pdf/id6798495748)

Transform any text document, PDF, or web article into a natural-sounding audiobook. Follow along with highlighted words in real-time for improved focus and recall. Offers lifelike AI voices and offline playback for a private, distraction-free reading experience.

**Highlights:** Text-to-speech audiobook conversion, Real-time word highlighting, Lifelike AI and offline voices, Distraction-free reader with themes, Background playback with lockscreen controls, Supports EPUB, PDF, MOBI, and web articles, Adjustable playback speed

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

**In-app purchases:** none


### PDF Reader, Read Aloud

[App page](https://appshunter.io/ios/app/pdf-reader-read-aloud/id6804272510)

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

**In-app purchases:** none


## Frequently asked questions

### Is Readium free?

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

### Is PDF Reader, Read Aloud free?

PDF Reader, Read Aloud is free to download, with no in-app purchases.

### Do Readium or PDF Reader, Read Aloud have ads?

PDF Reader, Read Aloud shows ads; Readium does not.

### Which is updated more often, Readium or PDF Reader, Read Aloud?

Readium ships an update weekly, and PDF Reader, Read Aloud daily. Most recently, Readium was updated on October 31, 2026 and PDF Reader, Read Aloud on October 29, 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.*