# COE Prep vs Eye Handbook

The clearest difference is in-app purchases: Eye Handbook at none against COE Prep's 1. Eye Handbook also leads on ratings volume (1.2K vs 78). COE Prep's advantage is ads (none vs shown) and iOS requirement (10.0 vs 15.5). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. COE Prep sells 1 one-off in-app purchase. Eye Handbook asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for COE Prep against 4.8 for Eye Handbook. That said, the two scores are not equally well evidenced: Eye Handbook has 1.2K ratings behind it against 78, so its average is the more settled of the two. Written reviews are what separate them: 76% of COE Prep's written reviews are positive against 81% of Eye Handbook's.

COE Prep ships an update every 3 weeks, Eye Handbook every 2 weeks. The most recent releases landed on September 19, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | COE Prep | Eye Handbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (78 ratings)](https://appshunter.io/ios/app/coe-prep/id315534299/reviews) | [4.8 (1.2K ratings)](https://appshunter.io/ios/app/eye-handbook/id335546959/reviews) |
| Number of ratings | 78 | **1.2K** |
| Positive reviews | 76.2% of reviews | **81.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 121 MB | 479 MB |
| Requires iOS | **10.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Higher Learning Technologies](https://appshunter.io/developer/571804544) | [Cloud Nine Development LLC](https://appshunter.io/developer/335546962) |

## What reviewers say

### COE Prep

[App page](https://appshunter.io/ios/app/coe-prep/id315534299)

Prepare for your Certified Ophthalmic Executive exam with official flashcards. This app offers over 300 practice questions covering key areas of ophthalmic administration, with detailed explanations and progress tracking. Study efficiently anytime, anywhere.

**Highlights:** 300+ exam-like practice questions, Detailed explanations for answers, Covers 6 key exam categories, Tag questions for quick review, Immediate progress feedback, Study anytime, anywhere

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| COE Exam Prep | $99.99 | one-time |


### Eye Handbook

[App page](https://appshunter.io/ios/app/eye-handbook/id335546959)

A comprehensive eye care reference app for ophthalmologists, optometrists, and students. It offers diagnostic tools, treatment references, calculators, educational resources, and community forums to support eye care professionals.

**Highlights:** Diagnostic and treatment reference, Eye calculators (visual acuity, diabetic retinopathy, etc.), Medication and pharmacopeia, Ophthalmology and optometry journals, Patient education tools, Peer-to-peer forums, Eye atlas and diagrams

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

**In-app purchases:** none

**What reviewers like**

- 👍 Useful information and tools
- 🚀 Comprehensive and efficient
- 💡 Great resource for eye care professionals
- 😊 Excellent app overall

**What reviewers complain about**

- 🐛 Crashes and bugs
- 📢 Intrusive ads and pop-ups
- 🔍 Poorly organized interface
- 🔋 High battery consumption

**Reported bugs**

- Registration process issues
- Compatibility problems with newer iOS versions
- Incorrect medication information

**Requested features**

- Add Tumbling E and Landolt C charts
- Improve search functionality
- Provide a paid ad-free version
- Optimize for larger screens (iPad)


## Frequently asked questions

### Is COE Prep free?

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

### Is Eye Handbook free?

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

### Which has better reviews, COE Prep or Eye Handbook?

COE Prep and Eye Handbook are both rated 4.8 out of 5 on the App Store, from 78 and 1.2K ratings respectively.

### Do COE Prep or Eye Handbook have ads?

Eye Handbook shows ads; COE Prep does not.

### Which is updated more often, COE Prep or Eye Handbook?

COE Prep ships an update every 3 weeks, and Eye Handbook every 2 weeks. Most recently, COE Prep was updated on September 19, 2026 and Eye Handbook on September 16, 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.*