# Eye Handbook vs COA Test Prep 2020

The clearest difference is review sentiment: Eye Handbook at 81% against COA Test Prep 2020's 0%. Eye Handbook also leads on rating (4.8 vs 1.5) and in-app purchases (none vs 3). COA Test Prep 2020's advantage is ads (none vs shown) and iOS requirement (10.1 vs 15.5). On price and device support there is nothing between them.

Both are free to download. COA Test Prep 2020 sells 3 in-app purchases, starting at $4.99 per month. Eye Handbook asks for nothing beyond the download.

Eye Handbook holds the better App Store score, 4.8 against 1.5. That said, the two scores are not equally well evidenced: Eye Handbook has 1.2K ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 81% of Eye Handbook's written reviews are positive against 0% of COA Test Prep 2020's.

## The numbers

| Metric | Eye Handbook | COA Test Prep 2020 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.2K ratings)](https://appshunter.io/ios/app/eye-handbook/id335546959/reviews)** | [1.5 (19 ratings)](https://appshunter.io/ios/app/coa-test-prep-2020/id1509562439/reviews) |
| Number of ratings | **1.2K** | 19 |
| Positive reviews | **81.1% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 479 MB | 64 MB |
| Requires iOS | 15.5 | **10.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Cloud Nine Development LLC](https://appshunter.io/developer/335546962) | [TRENDING MOBAPPS SRL](https://appshunter.io/developer/1526012193) |

## What reviewers say

### 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)


### COA Test Prep 2020

[App page](https://appshunter.io/ios/app/coa-test-prep-2020/id1509562439)

Prepare for your COA certification exam with over 400 practice questions covering all topics. Study anytime, anywhere with this convenient mobile tool designed for busy lifestyles. Features include offline access, verified content, and lifetime free updates.

**Highlights:** Over 400 exam-style questions, Works offline, Verified content, Lifetime free updates, Test-taking strategy tips, Testing log, Friendly interface

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| COA - 14 Days Free Trial | $4.99 | per month |
| COA - 14 Days Free Trial | $19.99 | per 6 months |
| COA - Lifetime Full Access | $27.99 | one-time |


## Frequently asked questions

### Is Eye Handbook free?

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

### Is COA Test Prep 2020 free?

COA Test Prep 2020 is free to download, with in-app purchases available.

### Which has better reviews, Eye Handbook or COA Test Prep 2020?

Eye Handbook is rated higher. Eye Handbook averages 4.8 out of 5 from 1.2K ratings, while COA Test Prep 2020 averages 1.5 from 19 ratings.

### Do Eye Handbook or COA Test Prep 2020 have ads?

Eye Handbook shows ads; COA Test Prep 2020 does not.

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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.*