# Date Calculation Assistant — Date & day diff calculator

> Date & day diff calculator (iPhone/iPad app by 玉辉 黄.)

- Source: https://appshunter.io/ios/app/date-calculation-assistant/id6758889725 (this page in markdown: same URL + `.md`)
- Developer: [玉辉 黄](https://appshunter.io/developer/1852393919)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 35 MB
- Languages: Arabic, Catalan, Croatian, Czech, Danish, Dutch, English, Finnish, French, German and 23 more
- Released: 2026-02-20
- Data updated: 2026-06-28
- User reviews in markdown: https://appshunter.io/ios/app/date-calculation-assistant/id6758889725/reviews.md

## What is Date Calculation Assistant?

Date Calculation Assistant helps you perform date calculations quickly and easily.

Key Features:

• Date Difference: Calculate the number of days between two dates. Select a date range and instantly see the result.

• Date After: Calculate the date N days after a given date. Pick a base date, enter the number of days, and get the target date.

• Date Before: Calculate the date N days before a given date. Pick a base date, enter the number of days, and get the target date.

• Calculation History: All calculations are saved automatically. Browse, review, and reuse your past results in the History tab of each feature.

Use Cases:

- Plan project timelines and deadlines
- Count days until or since important events
- Calculate ages and durations
- Plan travel or event dates
- Track days between appointments or milestones

Date Calculation Assistant features an intuitive interface with Calculator and History tabs for each tool, making date math simple and efficient.

Terms of Use: https://date-calculator-2cf52.web.app/#/eula

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Yearly Subscription | $5.99 | per year |



## Version history (last 5 releases)

### 1.0.9 — 2026-04-22

- Optimized UI and interaction
- Improved performance
- Bug fixes

### 1.0.6 — 2026-03-22

- Optimized UI and interaction
- Improved performance
- Bug fixes

### 1.0.5 — 2026-03-18

- Optimized UI and interaction
- Improved performance
- Bug fixes

### 1.0.4 — 2026-03-10

- Optimized UI and interaction
- Improved performance
- Bug fixes

### 1.0.3 — 2026-03-05

- Optimized UI and interaction
- Improved performance
- Bug fixes

## More apps by 玉辉 黄

- [Date Countdown Assistant](https://appshunter.io/ios/app/date-countdown-assistant/id6759904951)
- [Expiry Reminder Assistant](https://appshunter.io/ios/app/expiry-reminder-assistant/id6760778390)
- [Item Organization Assistant](https://appshunter.io/ios/app/item-organization-assistant/id6761250602)

All apps by 玉辉 黄: https://appshunter.io/developer/1852393919

## Related topics

[date calculation assistant](https://appshunter.io/ios/topics/date-calculation-assistant)

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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 2026-06-28.*