# Readium vs Reader

The clearest difference is ads: Readium at none against Reader's shown. Readium also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.6). Reader's advantage is update cadence (every 4 days vs every 2 months). On price and in-app purchases 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 every 2 months, Reader every 4 days. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Readium | Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 112 MB | 30 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AYZO](https://appshunter.io/developer/1886172287) | [Nick Ueda](https://appshunter.io/developer/442876726) |

## What reviewers say

### Readium

[App page](https://appshunter.io/ios/app/readium-text-to-speech/id6787689466)

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

**In-app purchases:** none


### Reader

[App page](https://appshunter.io/ios/app/reader-text-to-speech/id6790628508)

**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 Reader free?

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

### Do Readium or Reader have ads?

Reader shows ads; Readium does not.

### Which is updated more often, Readium or Reader?

Readium ships an update every 2 months, and Reader every 4 days. Most recently, Readium was updated on October 9, 2026 and Reader on October 19, 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.*