# 計算アプリ!!食塩水の濃度 vs 飲酒ウォッチ

The clearest difference is price: 飲酒ウォッチ at Free against 計算アプリ!!食塩水の濃度's $0.49. 飲酒ウォッチ also leads on update cadence (every 3 months vs every 32 months). 計算アプリ!!食塩水の濃度's advantage is iOS requirement (9.0 vs 15.5). On ads, in-app purchases and device support there is nothing between them.

飲酒ウォッチ is free to download; 計算アプリ!!食塩水の濃度 costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

計算アプリ!!食塩水の濃度 ships an update every 32 months, 飲酒ウォッチ every 3 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 計算アプリ!!食塩水の濃度 | 飲酒ウォッチ |
| --- | --- | --- |
| Price | $0.49 | **Free** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 11 MB | 77 MB |
| Requires iOS | **9.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Takaaki Sasaki](https://appshunter.io/developer/525616408) | [東海電子株式会社](https://appshunter.io/developer/1670260919) |

## What reviewers say

### 計算アプリ!!食塩水の濃度

[App page](https://appshunter.io/ios/app/id548985415)

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

**In-app purchases:** none


### 飲酒ウォッチ

[App page](https://appshunter.io/ios/app/id6450532761)

Easily simulate how long alcohol takes to leave your body. Input your drinks and profile details to see estimated breakdown times. Features a camera function to scan alcohol labels and includes alcohol dependence screening tests.

**Highlights:** Alcohol breakdown time simulation, Alcohol label scanning camera, Alcohol dependence screening tests, Simple input interface, Share simulation results to Twitter

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 計算アプリ!!食塩水の濃度 free?

計算アプリ!!食塩水の濃度 costs $0.49, with no in-app purchases.

### Is 飲酒ウォッチ free?

飲酒ウォッチ is free to download, with no in-app purchases.

### Do 計算アプリ!!食塩水の濃度 or 飲酒ウォッチ have ads?

Neither 計算アプリ!!食塩水の濃度 nor 飲酒ウォッチ shows ads.

### Which is updated more often, 計算アプリ!!食塩水の濃度 or 飲酒ウォッチ?

計算アプリ!!食塩水の濃度 ships an update every 32 months, and 飲酒ウォッチ every 3 months. Most recently, 計算アプリ!!食塩水の濃度 was updated on October 24, 2026 and 飲酒ウォッチ on October 8, 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.*