# Visual Acuity Test on App! vs muw

The clearest difference is ads: muw at none against Visual Acuity Test on App!'s shown. muw also leads on iOS requirement (9.0 vs 13.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Visual Acuity Test on App! ships an update every 23 months, muw every 24 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Visual Acuity Test on App! | muw |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/visual-acuity-test-on-app/id1110350296/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 28.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 23 months** | Every 24 months |
| Monetization | Ad-supported | — |
| Size | 7 MB | 17 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Takeda](https://appshunter.io/developer/1021096508) | [GENKI SHINBO](https://appshunter.io/developer/1492234290) |

## What reviewers say

### Visual Acuity Test on App!

[App page](https://appshunter.io/ios/app/visual-acuity-test-on-app/id1110350296)

Test your eyesight from home with this app. Hold your smartphone 50cm away and identify the direction of a waning circle to assess your visual acuity.

**Highlights:** Eyesight testing, Visual acuity assessment, Distance-based testing, Directional circle identification

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient for quick checks
- 👍 No ads mentioned by some users
- 👍 Can be useful as a rough estimate
- 👍 Simple and straightforward interface
- 👍 Some users find it accurate

**What reviewers complain about**

- 😞 Inaccurate readings compared to eye exams
- 😞 Results vary significantly
- 😞 Maximum reading is often 1.5
- 😞 Difficulty for low vision users
- 😞 Unclear about screen size assumptions

**Reported bugs**

- Arrow selection area obscured by test elements
- Test elements overlap with selection buttons
- Landolt ring shape is incorrect
- Maximum vision measurement is capped at 1.5

**Requested features**

- Fix overlapping elements on the screen
- Improve accuracy for low vision users
- Support for astigmatism testing
- More clear instructions for users with poor vision
- Increase the maximum measurable vision beyond 1.5


### muw

[App page](https://appshunter.io/ios/app/muw/id1492234291)

**In-app purchases:** none


## Frequently asked questions

### Is Visual Acuity Test on App! free?

Visual Acuity Test on App! is free to download, with no in-app purchases.

### Is muw free?

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

### Do Visual Acuity Test on App! or muw have ads?

Visual Acuity Test on App! shows ads; muw does not.

### Which is updated more often, Visual Acuity Test on App! or muw?

Visual Acuity Test on App! ships an update every 23 months, and muw every 24 months. Most recently, Visual Acuity Test on App! was updated on October 16, 2026 and muw on October 14, 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.*