# 1/2 one vs イカサマゲーム

The clearest difference is in-app purchases: 1/2 one at none against イカサマゲーム's 2. イカサマゲーム's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. イカサマゲーム sells 2 in-app purchases, starting at $1.99 per month. 1/2 one asks for nothing beyond the download.

1/2 one ships an update every 2 months, イカサマゲーム every 3 weeks. The most recent releases landed on October 2, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | 1/2 one | イカサマゲーム |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 49 MB | 51 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [gravass, Inc.](https://appshunter.io/developer/1527714391) | [Tsubasa Takahashi](https://appshunter.io/developer/6772681467) |

## What reviewers say

### 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


### イカサマゲーム

[App page](https://appshunter.io/ios/app/id6784103492)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プレミアム | $1.99 | per month |
| プレミアム買い切り | $6.99 | one-time |


## Frequently asked questions

### Is 1/2 one free?

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

### Is イカサマゲーム free?

イカサマゲーム is free to download, with in-app purchases available.

### Do 1/2 one or イカサマゲーム have ads?

Both 1/2 one and イカサマゲーム show ads.

### Which is updated more often, 1/2 one or イカサマゲーム?

1/2 one ships an update every 2 months, and イカサマゲーム every 3 weeks. Most recently, 1/2 one was updated on October 2, 2026 and イカサマゲーム on November 1, 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.*