# Obook vs ChapterWing

The clearest difference is in-app purchases: ChapterWing at none against Obook's 2. Obook's advantage is update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Obook sells 2 in-app purchases, starting at $4.99 per month. ChapterWing asks for nothing beyond the download.

Obook ships an update weekly, ChapterWing fortnightly. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Obook | ChapterWing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 56 MB | 42 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [MHD AMIN ALLAHHAM](https://appshunter.io/developer/1684285067) | [David Le](https://appshunter.io/developer/1769933170) |

## What reviewers say

### Obook

[App page](https://appshunter.io/ios/app/obook-text-to-speech/id6746949882)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Obook – AI Read Assistant Pro | $4.99 | per month |
| Obook AI Pro – Yearly | $49.99 | per year |


### ChapterWing

[App page](https://appshunter.io/ios/app/chapterwing/id6787813879)

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

**In-app purchases:** none


## Frequently asked questions

### Is Obook free?

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

### Is ChapterWing free?

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

### Do Obook or ChapterWing have ads?

Neither Obook nor ChapterWing shows ads.

### Which is updated more often, Obook or ChapterWing?

Obook ships an update weekly, and ChapterWing fortnightly. Most recently, Obook was updated on October 17, 2026 and ChapterWing on October 5, 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.*