# eETDRS Visual Acuity Test vs Ophthalmology & Optometry

The clearest difference is in-app purchases: eETDRS Visual Acuity Test at none against Ophthalmology & Optometry's 8. eETDRS Visual Acuity Test also leads on iOS requirement (12.0 vs 17.1). Ophthalmology & Optometry's advantage is update cadence (every 4 days vs every 3 months) and chart position (#169 vs unranked). On price, ads and device support there is nothing between them.

Both are free to download. Ophthalmology & Optometry sells 8 in-app purchases, starting at $9.99 per month. eETDRS Visual Acuity Test asks for nothing beyond the download.

eETDRS Visual Acuity Test ships an update every 3 months, Ophthalmology & Optometry every 4 days. The most recent releases landed on September 10, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | eETDRS Visual Acuity Test | Ophthalmology & Optometry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (120 ratings)](https://appshunter.io/ios/app/ophthalmology-and-optometry/id6471442410/reviews)** |
| Number of ratings | — | **120** |
| Positive reviews | — | 60.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#169** |
| Size | 36 MB | 231 MB |
| Requires iOS | **12.0** | 17.1 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Rino Enterprises LLC](https://appshunter.io/developer/406014997) | [My Call Bag LLC](https://appshunter.io/developer/1243282862) |

## What reviewers say

### eETDRS Visual Acuity Test

[App page](https://appshunter.io/ios/app/eetdrs-visual-acuity-test/id1551492695)

**In-app purchases:** none


### Ophthalmology & Optometry

[App page](https://appshunter.io/ios/app/ophthalmology-and-optometry/id6471442410)

**Currently charting:** #169 Top Grossing · Medical (US App Store)

This app transforms your iPhone into a comprehensive digital call bag for healthcare professionals. It offers a wide array of specialized tools for ophthalmology, neurology, optometry, emergency medicine, and internal medicine, leveraging advanced iPhone camera and sensor technology.

**Highlights:** Ophthalmology diagnostic tools, Neurology screening tools, Optometry vision tests, Emergency medicine aids, Internal medicine calculators, LiDAR exophthalmometer, AI Lensometer

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| iPad Monthly Subscription | $9.99 | per month |
| Annual Subscription to iPad App | $49.99 | per year |
| Annual Subscription | $49.99 | per year |
| 100 Credits | $3.99 | one-time |
| 500 Credits | $19.99 | one-time |
| Lifetime Access to iPad App | $149.99 | one-time |
| My Call Bag | $249.99 | one-time |


## Frequently asked questions

### Is eETDRS Visual Acuity Test free?

eETDRS Visual Acuity Test is free to download, with no in-app purchases.

### Is Ophthalmology & Optometry free?

Ophthalmology & Optometry is free to download, with in-app purchases available.

### Do eETDRS Visual Acuity Test or Ophthalmology & Optometry have ads?

Neither eETDRS Visual Acuity Test nor Ophthalmology & Optometry shows ads.

### Which is updated more often, eETDRS Visual Acuity Test or Ophthalmology & Optometry?

eETDRS Visual Acuity Test ships an update every 3 months, and Ophthalmology & Optometry every 4 days. Most recently, eETDRS Visual Acuity Test was updated on September 10, 2026 and Ophthalmology & Optometry on September 23, 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.*