# AAO eBooks vs Oftbook

The clearest difference is in-app purchases: AAO eBooks at none against Oftbook's 2. Oftbook's advantage is update cadence (every 3 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Oftbook sells 2 in-app purchases, starting at $19.99 per month. AAO eBooks asks for nothing beyond the download.

AAO eBooks ships an update every 3 months, Oftbook every 3 days. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | AAO eBooks | Oftbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (5 ratings)](https://appshunter.io/ios/app/aao-ebooks/id665817219/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 18.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 78 MB | 38 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | +17 |
| Developer | [American Academy of Ophthalmology, Inc.](https://appshunter.io/developer/665817223) | [OFTBOOK OFTALMOLOGIA DIGITAL LTDA](https://appshunter.io/developer/1616321191) |

## What reviewers say

### AAO eBooks

[App page](https://appshunter.io/ios/app/aao-ebooks/id665817219)

Access essential ophthalmology textbooks on your mobile device. Search, browse, and download purchased eBooks for offline use. Enhance learning with notes, highlights, and CME credit opportunities.

**Highlights:** Access purchased eBooks, Offline reading capability, Search and browse content, Highlighting and note-taking, Bookmark functionality, Earn CME credits

**Features:** macOS Compatibility

**In-app purchases:** none


### Oftbook

[App page](https://appshunter.io/ios/app/oftbook/id6759061221)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oftbook premium mensal | $19.99 | per month |
| Oftbook premium anual | $149.99 | per year |


## Frequently asked questions

### Is AAO eBooks free?

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

### Is Oftbook free?

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

### Do AAO eBooks or Oftbook have ads?

Neither AAO eBooks nor Oftbook shows ads.

### Which is updated more often, AAO eBooks or Oftbook?

AAO eBooks ships an update every 3 months, and Oftbook every 3 days. Most recently, AAO eBooks was updated on October 9, 2026 and Oftbook on October 1, 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.*