# Eye Chart HD vs Visual Vertical

The clearest difference is review sentiment: Visual Vertical at 100% against Eye Chart HD's 34%. Visual Vertical also leads on in-app purchases (none vs 2) and ads (none vs shown). Eye Chart HD's advantage is price (Free vs $11.99) and rating (5.0 vs 2.0). On ratings volume and device support there is nothing between them.

Eye Chart HD is free to download; Visual Vertical costs $11.99 up front. Eye Chart HD sells 2 in-app purchases, starting at $2.99 per month. Visual Vertical asks for nothing beyond the download.

Eye Chart HD holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 5 and 5 respectively. Written reviews complicate that: 34% of Eye Chart HD's written reviews are positive against 100% of Visual Vertical's, so the app with the better star average is not the one people write more warmly about.

Eye Chart HD ships an update every 6 months, Visual Vertical every 38 months. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Eye Chart HD | Visual Vertical |
| --- | --- | --- |
| Price | **Free** | $11.99 |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/eye-chart-hd/id382019572/reviews)** | [2.0 (5 ratings)](https://appshunter.io/ios/app/visual-vertical/id419017746/reviews) |
| Number of ratings | 5 | 5 |
| Positive reviews | 34.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 38 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 31 MB | 10 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Dok LLC](https://appshunter.io/developer/293163442) | [Clear Health Media](https://appshunter.io/developer/419017749) |

## 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 |


### Visual Vertical

[App page](https://appshunter.io/ios/app/visual-vertical/id419017746)

This medical app offers a quick, accurate, and low-cost method for measuring subjective visual vertical. It's designed for neurologists and vestibular rehabilitation specialists to test patients, especially for brainstem lesions and otolithic function, using just an iPhone or iPad.

**Highlights:** Measure subjective visual vertical, Accurate and low-cost testing, Suitable for neurology and vestibular rehab, Tests for brainstem lesions, Evaluates otolithic function, Multiple readings and averaged results, Single, one-off readings

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

**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 Visual Vertical free?

Visual Vertical costs $11.99, with no in-app purchases.

### Which has better reviews, Eye Chart HD or Visual Vertical?

Eye Chart HD is rated higher. Eye Chart HD averages 5.0 out of 5 from 5 ratings, while Visual Vertical averages 2.0 from 5 ratings.

### Do Eye Chart HD or Visual Vertical have ads?

Eye Chart HD shows ads; Visual Vertical does not.

### Which is updated more often, Eye Chart HD or Visual Vertical?

Eye Chart HD ships an update every 6 months, and Visual Vertical every 38 months. Most recently, Eye Chart HD was updated on September 25, 2026 and Visual Vertical on September 24, 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.*