# 鼻に指をドーン！ vs 1/2 one

The clearest difference is ads: 鼻に指をドーン！ at none against 1/2 one's shown. 鼻に指をドーン！ also leads on review sentiment (79% vs 50%) and iOS requirement (8.0 vs 16.4). 1/2 one's advantage is update cadence (every 2 months vs every 31 months). On price, 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.

鼻に指をドーン！ ships an update every 31 months, 1/2 one every 2 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 鼻に指をドーン！ | 1/2 one |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/id1136078886/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | **79.2% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Every 2 months** |
| Monetization | — | Ad-supported |
| Size | 37 MB | 49 MB |
| Requires iOS | **8.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [kazunori kubota](https://appshunter.io/developer/1085434471) | [gravass, Inc.](https://appshunter.io/developer/1527714391) |

## What reviewers say

### 鼻に指をドーン！

[App page](https://appshunter.io/ios/app/id1136078886)

**Features:** macOS Compatibility

**In-app purchases:** none


### 1/2 one

[App page](https://appshunter.io/ios/app/12-one-half/id6526470967)

Test your luck and strategy in this simple guessing game. Aim for consecutive correct answers with a 50/50 chance, and track your progress. You get one chance to redo a selection per streak.

**Highlights:** 50/50 guessing mechanic, Consecutive correct answer tracking, Single redo per streak, Probability display, Simple L/R choices

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

**In-app purchases:** none


## Frequently asked questions

### Is 鼻に指をドーン！ free?

鼻に指をドーン！ is free to download, with no in-app purchases.

### Is 1/2 one free?

1/2 one is free to download, with no in-app purchases.

### Do 鼻に指をドーン！ or 1/2 one have ads?

1/2 one shows ads; 鼻に指をドーン！ does not.

### Which is updated more often, 鼻に指をドーン！ or 1/2 one?

鼻に指をドーン！ ships an update every 31 months, and 1/2 one every 2 months. Most recently, 鼻に指をドーン！ was updated on November 6, 2026 and 1/2 one on November 4, 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.*