# Eye Chart HD vs eETDRS Visual Acuity Test

The clearest difference is in-app purchases: eETDRS Visual Acuity Test at none against Eye Chart HD's 2. eETDRS Visual Acuity Test also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Eye Chart HD sells 2 in-app purchases, starting at $2.99 per month. eETDRS Visual Acuity Test asks for nothing beyond the download.

Eye Chart HD ships an update every 6 months, eETDRS Visual Acuity Test every 3 months. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Eye Chart HD | eETDRS Visual Acuity Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/eye-chart-hd/id382019572/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 34.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 36 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Dok LLC](https://appshunter.io/developer/293163442) | [Rino Enterprises LLC](https://appshunter.io/developer/406014997) |

## What reviewers say

### Eye Chart HD

[App page](https://appshunter.io/ios/app/eye-chart-hd/id382019572)

This app provides a clinically evaluated visual acuity screening tool for various settings. It offers randomized Snellen, Tumbling E, and other charts to help assess vision, especially when traditional charts are unavailable or memorized. Additional features are available through a monthly subscription.

**Highlights:** Randomized Snellen charts, Tumbling E charts, Pocket vision screener, Line randomization, Chart selector, Near vision chart (subscription), Amsler Grid (subscription)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional Subscription | $2.99 | per month |
| Eye Chart HD Full Version | $0.99 | one-time |


### eETDRS Visual Acuity Test

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

**In-app purchases:** none


## Frequently asked questions

### Is Eye Chart HD free?

Eye Chart HD is free to download, with in-app purchases available.

### Is eETDRS Visual Acuity Test free?

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

### Do Eye Chart HD or eETDRS Visual Acuity Test have ads?

Eye Chart HD shows ads; eETDRS Visual Acuity Test does not.

### Which is updated more often, Eye Chart HD or eETDRS Visual Acuity Test?

Eye Chart HD ships an update every 6 months, and eETDRS Visual Acuity Test every 3 months. Most recently, Eye Chart HD was updated on September 25, 2026 and eETDRS Visual Acuity Test on September 10, 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.*