# 日期計算

> Calculate date differences and end dates with inclusive/exclusive day options. (iPhone/iPad app by Huaping Ye.)

- Source: https://appshunter.io/ios/app/id1395288604 (this page in markdown: same URL + `.md`)
- Developer: [Huaping Ye](https://appshunter.io/developer/1639123510)
- Category: Utilities, Productivity
- Price: Free
- Rating: 5.00/5 from 4 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 6 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China), European Spanish and 2 more
- Released: 2018-07-31
- Data updated: 2026-10-24
- Monetization: free

## What is 日期計算?

【日期計算】
1. 快速計算兩個日期之間的日數差距
2. 根據指定的日數及起始日期，計算結束日期
3. 自訂「包括首尾兩日」或「不包括首天」

【Day Calculator】
1. Quickly calculate the difference between two dates.
2. Calculate End Date based on the given Period and Starting Date.
3. Allow free setting of [both days inclusive] and [exclude first day]

## Key features

- Calculate difference between two dates
- Calculate end date from start date and period
- Set days inclusive
- Exclude first day option
- Free to use

## Is 日期計算 safe?

Not enough ratings yet to assess 日期計算.

## Is 日期計算 legit?

日期計算 appears to be a legitimate app. The AppsHunter Legitimacy Score for 日期計算 is 90 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about 日期計算

### How accurate is Day Calculation?

Day Calculation has a perfect 5.0-star rating from 4 user reviews, indicating high user satisfaction with its accuracy and functionality.

### Is Day Calculation free to use?

Yes, Day Calculation is completely free to download and use, with no in-app purchases or advertisements.

### What devices does Day Calculation support?

Day Calculation is available for iPhone, iPad, and iPod devices.

### What is the age rating for Day Calculation?

Day Calculation has an age rating of 4+, making it suitable for a wide range of users.

### How often is Day Calculation updated?

The latest version, 1.4, was released on December 8, 2018. While updates have not been frequent recently, the app's core functionality remains stable.

### Can I calculate an end date with Day Calculation?

Yes, Day Calculation allows you to calculate an end date by providing a starting date and the desired period.

### Does Day Calculation include or exclude the first day in calculations?

Day Calculation offers flexibility, allowing you to choose whether to include both days in the calculation or exclude the first day.

## Version history (last 5 releases)

### 2.0 — 2026-10-16

1. 版面優化及功能改進，更易計算兩日差距

### 1.4 — 2018-12-08

layout and function improvement

### 1.3 — 2018-07-23

added video preview

### 1.2 — 2018-07-20

Function improvement

### 1.0 — 2018-06-11

No release notes.

## Apps similar to 日期計算

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [date and time calculator app](https://appshunter.io/ios/app/date-and-time-calculator-app/id6742089249) | 5.0 (1) | Free | Utilities |
| [Date & Time Calculator Counter](https://appshunter.io/ios/app/date-and-time-calculator-counter/id1547673028) | 4.6 (28) | Free | Utilities |
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| [Date Calendar Calculator](https://appshunter.io/ios/app/date-calendar-calculator/id1472858405) | 4.8 (30) | Free | Utilities |
| [Date Calculator, Days Calc](https://appshunter.io/ios/app/date-calculator-days-calc/id1582411955) | 4.5 (131) | Free | Utilities |
| [Days Counter Calculator](https://appshunter.io/ios/app/days-counter-calculator/id562187774) | 5.0 (2) | Free | Utilities |

## More apps by Huaping Ye

- [腦筋急轉彎](https://appshunter.io/ios/app/id1252261936)
- [IQ題](https://appshunter.io/ios/app/iq/id1254945461)
- [Steel Data](https://appshunter.io/ios/app/steel-data/id1255989099)
- [建築字典](https://appshunter.io/ios/app/id1257308107)
- [英文名](https://appshunter.io/ios/app/id1260143919)
- [基本法練習](https://appshunter.io/ios/app/id1260410048)

All apps by Huaping Ye: https://appshunter.io/developer/1639123510

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*