# Eye Chart HD vs EAN Congress

The clearest difference is in-app purchases: EAN Congress at none against Eye Chart HD's 2. EAN Congress also leads on ads (none vs shown). Eye Chart HD's advantage is iOS requirement (12.0 vs 14.0). On price, update cadence and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on November 10, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Eye Chart HD | EAN Congress |
| --- | --- | --- |
| Price | Free | Free |
| 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 | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 12 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dok LLC](https://appshunter.io/developer/293163442) | [M Events Cross Media GmbH](https://appshunter.io/developer/455654224) |

## 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 |


### EAN Congress

[App page](https://appshunter.io/ios/app/ean-congress/id6448112240)

**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 EAN Congress free?

EAN Congress is free to download, with no in-app purchases.

### Do Eye Chart HD or EAN Congress have ads?

Eye Chart HD shows ads; EAN Congress does not.

### Which is updated more often, Eye Chart HD or EAN Congress?

Eye Chart HD ships an update every 6 months, and EAN Congress every 6 months. Most recently, Eye Chart HD was updated on November 10, 2026 and EAN Congress on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*