# Eye Chart HD vs Snellen test

The clearest difference is price: Eye Chart HD at Free against Snellen test's $0.99. Eye Chart HD also leads on review sentiment (33% vs 0%). Snellen test's advantage is in-app purchases (none vs 2) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Eye Chart HD is free to download; Snellen test costs $0.99 up front. Eye Chart HD sells 2 in-app purchases, starting at $2.99 per month. Snellen test asks for nothing beyond the download.

Eye Chart HD ships an update every 6 months, Snellen test every 4 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | Eye Chart HD | Snellen test |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/eye-chart-hd/id382019572/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 31 MB | 3 MB |
| Requires iOS | **12.0** | 13.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dok LLC](https://appshunter.io/developer/293163442) | [Oleg Drobyshev](https://appshunter.io/developer/607614659) |

## 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 |


### Snellen test

[App page](https://appshunter.io/ios/app/snellen-test/id1514134289)

This app uses augmented reality to display a Snellen eye chart for visual acuity testing. It allows users to adjust the chart's size and position from a distance, simulating a professional eye exam. Ideal for quick vision checks at home.

**Highlights:** Augmented reality Snellen chart, Adjustable chart size and position, Remote control via device camera, Distance simulation for testing, Customizable display options

**Features:** macOS Compatibility

**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 Snellen test free?

Snellen test costs $0.99, with no in-app purchases.

### Do Eye Chart HD or Snellen test have ads?

Eye Chart HD shows ads; Snellen test does not.

### Which is updated more often, Eye Chart HD or Snellen test?

Eye Chart HD ships an update every 6 months, and Snellen test every 4 months. Most recently, Eye Chart HD was updated on October 29, 2026 and Snellen test on October 29, 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.*