# ReadVortex vs Readium

The clearest difference is update cadence: Readium at every 2 months against ReadVortex's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

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

ReadVortex ships an update every 6 months, Readium every 2 months. Both last shipped on October 9, 2026.

## The numbers

| Metric | ReadVortex | Readium |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 61 MB | 112 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EMDES SOLUTIONS LLC](https://appshunter.io/developer/1766028021) | [AYZO](https://appshunter.io/developer/1886172287) |

## What reviewers say

### ReadVortex

[App page](https://appshunter.io/ios/app/readvortex/id6749256811)

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

**In-app purchases:** none


### Readium

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

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

**In-app purchases:** none


## Frequently asked questions

### Is ReadVortex free?

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

### Is Readium free?

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

### Do ReadVortex or Readium have ads?

Neither ReadVortex nor Readium shows ads.

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

ReadVortex ships an update every 6 months, and Readium every 2 months. Most recently, ReadVortex was updated on October 9, 2026 and Readium on October 9, 2026.

---

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