# AAO eBooks vs complexCataract

The clearest difference is rating: complexCataract at 5.0 against AAO eBooks's 3.8. On price, ratings volume, ads 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.

complexCataract holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 5 and 8 respectively.

## The numbers

| Metric | AAO eBooks | complexCataract |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (5 ratings)](https://appshunter.io/ios/app/aao-ebooks/id665817219/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/complexcataract/id1515368409/reviews)** |
| Number of ratings | 5 | **8** |
| Positive reviews | 18.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | Free |
| Size | 78 MB | 1 MB |
| Requires iOS | 14.0 | **13.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [American Academy of Ophthalmology, Inc.](https://appshunter.io/developer/665817223) | [mHealth Wellness LLC](https://appshunter.io/developer/1513476858) |

## 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


### complexCataract

[App page](https://appshunter.io/ios/app/complexcataract/id1515368409)

This medical tool aids ophthalmology trainees in calculating cataract surgery complexity using a published scoring system. It helps to potentially minimize operative complications by providing fast and easy calculations based on established research.

**Highlights:** Cataract surgery complexity scoring, Based on Nderitu and Ursell 2018 work, Fast and easy calculations, Aids ophthalmology training, Minimizes operative complications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AAO eBooks free?

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

### Is complexCataract free?

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

### Which has better reviews, AAO eBooks or complexCataract?

complexCataract is rated higher. AAO eBooks averages 3.8 out of 5 from 5 ratings, while complexCataract averages 5.0 from 8 ratings.

### Do AAO eBooks or complexCataract have ads?

Neither AAO eBooks nor complexCataract shows ads.

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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.*