# Eye Charts vs eETDRS Visual Acuity Test

The clearest difference is price: eETDRS Visual Acuity Test at Free against Eye Charts's $4.99. eETDRS Visual Acuity Test also leads on iOS requirement (12.0 vs 14.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

eETDRS Visual Acuity Test is free to download; Eye Charts costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Eye Charts | eETDRS Visual Acuity Test |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[3.5 (29 ratings)](https://appshunter.io/ios/app/eye-charts/id1442509969/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 23 MB | 36 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [zijian huang](https://appshunter.io/developer/1442509968) | [Rino Enterprises LLC](https://appshunter.io/developer/406014997) |

## What reviewers say

### Eye Charts

[App page](https://appshunter.io/ios/app/eye-charts/id1442509969)

Measure and track distant vision with optically precise optotypes. Supports various eye chart types and custom test distances. Useful for early detection of vision issues and monitoring progression.

**Highlights:** Optically precise optotypes, Multiple eye chart types (Snellen, Tumbling E, Landolt C, ETDRS, HOTV, Numbers, Shapes), Customizable test distances (meters and feet), Mirror and Bluetooth keyboard testing modes, Manual and auto-scoring test modes, Visual acuity progression tracking, LogMAR scoring

**In-app purchases:** none


### 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 Charts free?

Eye Charts costs $4.99, with no in-app purchases.

### Is eETDRS Visual Acuity Test free?

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

### Do Eye Charts or eETDRS Visual Acuity Test have ads?

Neither Eye Charts nor eETDRS Visual Acuity Test shows ads.

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

Eye Charts ships an update every 3 months, and eETDRS Visual Acuity Test every 3 months. Most recently, Eye Charts was updated on September 22, 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.*