# Time Calculation vs 時間計算機

The clearest difference is price: 時間計算機 at Free against Time Calculation's $1.99. 時間計算機 also leads on update cadence (every 10 months vs every 42 months). Time Calculation's advantage is ads (none vs shown) and iOS requirement (15.6 vs 17.0). On in-app purchases and device support there is nothing between them.

時間計算機 is free to download; Time Calculation costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Time Calculation ships an update every 42 months, 時間計算機 every 10 months. The most recent releases landed on October 12, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Time Calculation | 時間計算機 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/time-calculation/id1449412502/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 42 months | **Every 10 months** |
| Monetization | Paid | — |
| Size | 0 MB | 8 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kei Suefuji](https://appshunter.io/developer/1388335881) | [Sheng-Hsiung Tsai](https://appshunter.io/developer/1456133749) |

## What reviewers say

### Time Calculation

[App page](https://appshunter.io/ios/app/time-calculation/id1449412502)

Easily add and subtract time in hours and minutes without manual rounding. Copy calculation results and review past formulas with a history feature. Includes navigation and deletion tools for formula input.

**Highlights:** Add and subtract hours and minutes, Automatic minute rounding, Copy calculation results, View calculation history, Formula input navigation, Delete formula history

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

**In-app purchases:** none


### 時間計算機

[App page](https://appshunter.io/ios/app/id1458273573)

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

**In-app purchases:** none


## Frequently asked questions

### Is Time Calculation free?

Time Calculation costs $1.99, with no in-app purchases.

### Is 時間計算機 free?

時間計算機 is free to download, with no in-app purchases.

### Do Time Calculation or 時間計算機 have ads?

時間計算機 shows ads; Time Calculation does not.

### Which is updated more often, Time Calculation or 時間計算機?

Time Calculation ships an update every 42 months, and 時間計算機 every 10 months. Most recently, Time Calculation was updated on October 12, 2026 and 時間計算機 on October 26, 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.*