# Eye Chart HD vs Ret

The clearest difference is in-app purchases: Ret at none against Eye Chart HD's 2. Ret also leads on ads (none vs shown). On price, 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. Ret asks for nothing beyond the download.

## The numbers

| Metric | Eye Chart HD | Ret |
| --- | --- | --- |
| 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 | — |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 39 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Dok LLC](https://appshunter.io/developer/293163442) | [Canela Tech, S.L.](https://appshunter.io/developer/446008953) |

## 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 |


### Ret

[App page](https://appshunter.io/ios/app/ret-in-cam/id1509765945)

**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 Ret free?

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

### Do Eye Chart HD or Ret have ads?

Eye Chart HD shows ads; Ret does not.

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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.*