# Day Calculation

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

- Source: https://appshunter.io/ios/app/day-calculation/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 11.0 · 12 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: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/day-calculation/id1395288604/reviews.md

## What is Day Calculation?

【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


## Frequently asked questions about Day Calculation

### 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 4 releases)

### 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 Day Calculation

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Date & Time Calculator Counter](https://appshunter.io/ios/app/date-and-time-calculator-counter/id1547673028) | 4.5 (21) | Free | Utilities |
| [The Date Calculator PRO](https://appshunter.io/ios/app/the-date-calculator-pro/id1045043882) | 4.7 (2,506) | Free | Utilities |
| [date and time calculator app](https://appshunter.io/ios/app/date-and-time-calculator-app/id6742089249) | 5.0 (1) | Free | Utilities |
| [Date Calculator, Days Calc](https://appshunter.io/ios/app/date-calculator-days-calc/id1582411955) | 4.5 (130) | Free | Utilities |
| [Date Calendar Calculator](https://appshunter.io/ios/app/date-calendar-calculator/id1472858405) | 4.9 (28) | Free | Utilities |
| [日期计算器Pro](https://appshunter.io/ios/app/pro/id6670172372) | — | Free | Utilities |

## More apps by Huaping Ye

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- [IQ題](https://appshunter.io/ios/app/iq/id1254945461)
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- [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 2026-06-04.*