# Date Calculator, Days Calc — Time: Add, Between, Difference

> Utility app for calculating date differences, additions, and workdays. (iPhone/iPad app by Phan Nhat Đang.)

- Source: https://appshunter.io/ios/app/date-calculator-days-calc/id1582411955 (this page in markdown: same URL + `.md`)
- Developer: [Phan Nhat Đang](https://appshunter.io/developer/1437390098)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.50/5 from 131 App Store ratings · 15 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 2 MB
- Languages: Russian, Hindi, Vietnamese, British English, Dutch, Danish, Indonesian, Latin American Spanish, Italian, Korean and 11 more
- Released: 2021-09-04
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/date-calculator-days-calc/id1582411955/reviews.md

## What is Date Calculator, Days Calc?

Use this App to solve date math problems. We offer many different types of calculations:
- Days Between Two Dates
- Add to/Subtract from a Date
- Workdays Calculator
- Add/Subtract Workdays
This is a very intuitive App, simple and easy to use.

We are very happy to serve you. If you have any requests, don't hesitate to contact us.
- https://www.facebook.com/phan.nhatdang.3/
- phannhatd@gmail.com

## Key features

- Days Between Two Dates
- Add to/Subtract from a Date
- Workdays Calculator
- Add/Subtract Workdays
- Intuitive and Simple Interface

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock all features | $3.99 | one-time |


## Recent user reviews (10 of 15)

All indexed reviews: https://appshunter.io/ios/app/date-calculator-days-calc/id1582411955/reviews.md

### 5/5 — Excellent app

*2026-08-08*

No ads, simple and very user-friendly.

### 5/5 — Nice and helps a lot

*2026-08-07*

Good

### 5/5 — Bravo

*2026-01-11*

Simple et efficace. Petite application pratique et réussie.

### 2/5 — Werbung bevor man etwas berechnen kann.

*2025-08-08*

Die App ist sicherlich ganz gut und die Funktion hilfreich, jedoch, um schnell etwas zu rechnen ist es nutzlos, da man sich erst Werbung anschauen muss, bevor man ein einzelnes Ergebnis erhält.

### 5/5 — Супер

*2025-03-17*

Супер приложение

### 5/5 — Easy to use

*2025-03-16*

I use this app to help me plan appointments I need to make for my work. Super convenient. Ads are not obnoxious. So happy I found this option to assist me in my job 😊

### 1/5 — Плохо

*2024-06-29*

Плохо считает рабочие дни

### 3/5 — Few bugs

*2024-05-15*

1/ text lines do not show totally (caractère size seems to big) 2/ not sure about calculation : ex for month of May ; it is a 31 day month and when I check, it shows 30 days
3/ from 01/01/2024 to 31/12/2024, it calcs 11 months or 365 days 
Strange

### 2/5 — App

*2024-01-19*

Add please: “Calculate including the last day”

For me it’s the main feature, right now date calculator without this function - totally useless

### 1/5 — Ads

*2023-11-19*

Had app 30 seconds 5 ads

## Frequently asked questions about Date Calculator, Days Calc

### What calculations can Date Calculator perform?

Date Calculator can calculate the number of days between two dates, add or subtract days from a specific date, and compute workdays. It also offers functionality to add or subtract workdays.

### Is Date Calculator free to use?

Yes, Date Calculator is free to download and use. It is supported by ads and offers in-app purchases.

### What devices is Date Calculator available on?

Date Calculator is available on iPhone, iPad, and iPod. It is designed for iOS devices.

### What is the age rating for Date Calculator?

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

### How often is Date Calculator updated?

The latest version of Date Calculator is 1.3.1, and it was last updated on February 20, 2026. This indicates a commitment to ongoing development and improvements.

### What is the user rating for Date Calculator?

Date Calculator has a strong user rating of 4.5 stars based on 124 ratings, suggesting a positive user experience.

### Can I contact the developer for requests?

Yes, the developer Phan Nhat Đang welcomes user requests and provides contact information via Facebook and email (phannhatd@gmail.com).

## Version history (last 5 releases)

### 1.5.0 — 2026-05-27

Bug fixes and performance improvements.

### 1.4.0 — 2026-04-24

Bug fixes and performance improvements.

### 1.3.1 — 2026-02-20

Solve the problem of date calculations for you.

### 1.3.0 — 2024-11-06

Bug fixes and performance improvements

### 1.2.0 — 2023-08-02

Bug fixes and performance improvements

## Apps similar to Date Calculator, Days Calc

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Time Calculator - Work Hours](https://appshunter.io/ios/app/time-calculator-work-hours/id565039079) | 4.7 (2,819) | Free | Utilities |
| [Date and Time Calculator](https://appshunter.io/ios/app/date-and-time-calculator/id552798167) | 4.7 (9,733) | Free | Utilities |
| [Date and Time Calculator Pro](https://appshunter.io/ios/app/date-and-time-calculator-pro/id582268389) | 4.8 (947) | $0.99 | Utilities |
| [Time Calculator: Add, Subtract](https://appshunter.io/ios/app/time-calculator-add-subtract/id1583726955) | 4.6 (167) | Free | Utilities |
| [Hours Tracker: Time Calculator](https://appshunter.io/ios/app/hours-tracker-time-calculator/id1468092377) | 4.7 (80,581) | Free | Utilities |
| [Date & Time Calculator +](https://appshunter.io/ios/app/date-and-time-calculator-plus/id1606610480) | 4.6 (112) | $0.99 | Utilities |

## More apps by Phan Nhat Đang

- [Compound Interest Calc: Growth](https://appshunter.io/ios/app/compound-interest-calc-growth/id1437390099)
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- [Auto Loan Calculator - Car](https://appshunter.io/ios/app/auto-loan-calculator-car/id1487930075)
- [Mortgage Calculator: Payment](https://appshunter.io/ios/app/mortgage-calculator-payment/id1489668528)

All apps by Phan Nhat Đang: https://appshunter.io/developer/1437390098

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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 2026-08-28.*