# IO reader vs Audissey

The clearest difference is ads: IO reader at none against Audissey's shown. IO reader also leads on iOS requirement (18.2 vs 26.5). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. IO reader sells 2 in-app purchases, starting at $2.99 per month and Audissey sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

IO reader ships an update every 4 days, Audissey every 2 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | IO reader | Audissey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/io-reader-books-in-reels/id6767890380/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 31 MB | 362 MB |
| Requires iOS | **18.2** | 26.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KHHM LLC](https://appshunter.io/developer/1896517595) | [Won O Soft](https://appshunter.io/developer/329958815) |

## What reviewers say

### IO reader

[App page](https://appshunter.io/ios/app/io-reader-books-in-reels/id6767890380)

This app offers a focused reading experience for classic literature, presenting text in digestible units. It features an AI companion that prompts deeper thinking and provides context, along with tools for note-taking and vocabulary building. Users can access free classics or import their own DRM-free EPUBs.

**Highlights:** Focused reading modes (Reel, Cards), AI-powered critical thinking companion, Access to thousands of free classics, Import personal EPUBs and web articles, Cross-device sync and note-taking, AI-powered search and recommendations (IO+)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IO+ Monthly | $2.99 | per month |
| IO+ Annual | $24.99 | per year |


### Audissey

[App page](https://appshunter.io/ios/app/audissey-web-audio-reader/id6784635190)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audissey Pro | $8.99 | one-time |


## Frequently asked questions

### Is IO reader free?

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

### Is Audissey free?

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

### Do IO reader or Audissey have ads?

Audissey shows ads; IO reader does not.

### Which is updated more often, IO reader or Audissey?

IO reader ships an update every 4 days, and Audissey every 2 days. Most recently, IO reader was updated on November 9, 2026 and Audissey on November 10, 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.*