# VisionC (ETDRS Visual Acuity) vs Eye Charts

The clearest difference is price: Eye Charts at $4.99 against VisionC (ETDRS Visual Acuity)'s $79.99. Eye Charts also leads on update cadence (every 2 months vs every 8 months) and device support (3 vs 1). VisionC (ETDRS Visual Acuity)'s advantage is iOS requirement (10.0 vs 15.0). On ads and in-app purchases there is nothing between them.

VisionC (ETDRS Visual Acuity) costs $79.99 and Eye Charts $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VisionC (ETDRS Visual Acuity) ships an update every 8 months, Eye Charts every 2 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | VisionC (ETDRS Visual Acuity) | Eye Charts |
| --- | --- | --- |
| Price | $79.99 | **$4.99** |
| Rating | — | **[3.5 (29 ratings)](https://appshunter.io/ios/app/eye-charts/id1442509969/reviews)** |
| Number of ratings | — | **29** |
| Positive reviews | — | 67.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 9 MB | 23 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Qvision, Departamento de Oftalmología](https://appshunter.io/developer/1602553646) | [zijian huang](https://appshunter.io/developer/1442509968) |

## What reviewers say

### VisionC (ETDRS Visual Acuity)

[App page](https://appshunter.io/ios/app/visionc-etdrs-visual-acuity/id1041393885)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is VisionC (ETDRS Visual Acuity) free?

VisionC (ETDRS Visual Acuity) costs $79.99, with no in-app purchases.

### Is Eye Charts free?

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

### Do VisionC (ETDRS Visual Acuity) or Eye Charts have ads?

Neither VisionC (ETDRS Visual Acuity) nor Eye Charts shows ads.

### Which is updated more often, VisionC (ETDRS Visual Acuity) or Eye Charts?

VisionC (ETDRS Visual Acuity) ships an update every 8 months, and Eye Charts every 2 months. Most recently, VisionC (ETDRS Visual Acuity) was updated on October 26, 2026 and Eye Charts on October 26, 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.*