# AAO eBooks vs GCA Manager

The clearest difference is rating: GCA Manager at 5.0 against AAO eBooks's 3.8. AAO eBooks's advantage is ratings volume (5 vs 1). On price, update cadence, 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.

GCA Manager holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: AAO eBooks has 5 ratings behind it against 1, so its average is the more settled of the two.

AAO eBooks ships an update every 3 months, GCA Manager every 4 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | AAO eBooks | GCA Manager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (5 ratings)](https://appshunter.io/ios/app/aao-ebooks/id665817219/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gca-manager/id1508351325/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 18.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 78 MB | 20 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [American Academy of Ophthalmology, Inc.](https://appshunter.io/developer/665817223) | [@Point of Care](https://appshunter.io/developer/916313675) |

## 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


### GCA Manager

[App page](https://appshunter.io/ios/app/gca-manager/id1508351325)

This app helps individuals manage Giant Cell Arteritis (GCA) by tracking symptoms, medications, and moods. It visualizes your health journey with charts, offers medication reminders, and allows sharing of visible symptoms with care providers. Stay informed with educational resources and earn rewards for app usage.

**Highlights:** Daily symptom and mood tracking, Medication management with reminders, Photo upload for visible symptoms, Progress visualization with charts, Connect with care providers, Educational resources on GCA, Rewards and badges for app usage

**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 GCA Manager free?

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

### Which has better reviews, AAO eBooks or GCA Manager?

GCA Manager is rated higher. AAO eBooks averages 3.8 out of 5 from 5 ratings, while GCA Manager averages 5.0 from 1 ratings.

### Do AAO eBooks or GCA Manager have ads?

Neither AAO eBooks nor GCA Manager shows ads.

### Which is updated more often, AAO eBooks or GCA Manager?

AAO eBooks ships an update every 3 months, and GCA Manager every 4 months. Most recently, AAO eBooks was updated on November 1, 2026 and GCA Manager on November 3, 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.*