# Whack A Notch vs 視力検査2.0

The clearest difference is device support: Whack A Notch at 3 against 視力検査2.0's 1. Whack A Notch also leads on iOS requirement (12.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Whack A Notch | 視力検査2.0 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | — | Free |
| Size | 16 MB | 11 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KENSHI DOI](https://appshunter.io/developer/709264908) | [Masaki Hirayama](https://appshunter.io/developer/1693736943) |

## What reviewers say

### Whack A Notch

[App page](https://appshunter.io/ios/app/whack-a-notch/id1445354099)

**Features:** macOS Compatibility

**In-app purchases:** none


### 視力検査2.0

[App page](https://appshunter.io/ios/app/20/id6471899145)

This app offers a more accurate vision test by providing 1-degree increments for choices, unlike traditional tests with limited options. It aims to reveal your true visual acuity by minimizing guesswork.

**Highlights:** Precise 1-degree choice increments, Improved accuracy over traditional tests, Identifies true visual acuity, Simple and straightforward interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Whack A Notch free?

Whack A Notch is free to download, with no in-app purchases.

### Is 視力検査2.0 free?

視力検査2.0 is free to download, with no in-app purchases.

### Do Whack A Notch or 視力検査2.0 have ads?

Neither Whack A Notch nor 視力検査2.0 shows ads.

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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.*