# DayNumCalc — Day number & date calculations

> Calculate day numbers, date differences, and days of the week. (iPhone/iPad app by Mayra M Martinez.)

- Source: https://appshunter.io/ios/app/daynumcalc/id1633054306 (this page in markdown: same URL + `.md`)
- Developer: [Mayra M Martinez](https://appshunter.io/developer/1633054308)
- Category: Utilities
- Price: $0.99
- Rating: 4.83/5 from 6 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.5 · 1 MB
- Languages: English
- Released: 2022-08-21
- Data updated: 2026-09-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/daynumcalc/id1633054306/reviews.md

## What is DayNumCalc?

DayNumCalc gives easy access to basic date calculations:
- The current date/day number information is immediately available. Examples: day 1 = 1 January; day 365 = 31 December (non-leap year) or 30 December (leap year)
- Date/day number calculations: get the day number from a chosen date, and a date from a paired year/day number
- Calculate the number of days between two dates
- Determine a date after adding or subtracting a number of days fro a chosen date
- Check the day of the week for a date of your choice
Widgets for the Home Screen, the Today View, and the Lock Screen are available for ease of use.

## Key features

- Calculate day number from date
- Determine date from day number
- Calculate days between two dates
- Add/subtract days from a date
- Check day of the week
- Home screen widgets
- Today View widgets
- Lock screen widgets

## Chart rankings

- #176 in Top Paid · Utilities (US App Store)

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/daynumcalc/id1633054306/reviews.md

### 4/5 — Does what it says

*2023-12-28, version 1.2*

If you need to know what day number July 7th is and you don’t have a calendar that shows day numbers this app will give you the day number for July 7th, etc.

### 5/5 — Excellent App!

*2022-09-11, version 1.0*

Well done to the developer!

### 5/5 — Good for managing project flows.

*2022-08-25, version 1.0*

Does exactly what it advertised. 👍

### 5/5 — Simple and straightforward = perfect

*2022-08-23, version 1.0*

Input date = get a number and input number and year = date.  Nice and fast !

## Frequently asked questions about DayNumCalc

### What is DayNumCalc?

DayNumCalc is a paid utility app that allows users to perform various date calculations, such as finding the day number of a specific date, calculating the difference between two dates, and determining a date by adding or subtracting a number of days.

### How much does DayNumCalc cost?

DayNumCalc is a paid application priced at $0.99. There are no in-app purchases or subscriptions required.

### Does DayNumCalc have ads?

No, DayNumCalc does not contain advertisements. It is a paid app that offers an ad-free experience.

### What devices is DayNumCalc compatible with?

DayNumCalc is compatible with iPhone, iPad, and iPod touch devices. It is designed for the iOS platform.

### How often is DayNumCalc updated?

The latest version of DayNumCalc is 2.1, which was last updated on August 9, 2024. This indicates a relatively active development cycle.

### What is the age rating for DayNumCalc?

DayNumCalc has an age rating of 4+, making it suitable for a wide range of users, including children and adults.

### Can I use DayNumCalc offline?

As a utility app focused on calculations, DayNumCalc is designed to function offline. Date calculations do not require an internet connection.

### What do users like about DayNumCalc?

Based on its rating of 4.8 stars from 6 ratings, users likely appreciate its straightforward functionality and ease of use for essential date calculations.

## Version history (last 5 releases)

### 2.1 — 2024-08-09

This update modifies the appearance of the Home Screen and Today View widgets for devices running iOS 17.0+. It also restores basic widget functionality for devices running iOS 16.

### 2.0 — 2024-07-09

DayNumCalc now has a tabbed user interface. The first tab has the familiar features: calculate a day number from a date, and a date from day number/year information. The second tab adds the following:
- Determine the number of days between two dates
- Find a new date by adding or deducting a number of days from your chosen date
- Determine the day of the week for a date of your choice

### 1.2 — 2023-08-29

This update adds widget functionality to the app: small widget for the Home Screen, and the Today View; accessory circular, rectangular, and/or inline widgets for the Lock Screen.

### 1.1 — 2023-08-29

This update adds widget functionality to the app. Available widgets: small widget for the Home Screen, and the Today View; accessory circular, rectangular, and/or inline widgets for the Lock Screen.

### 1.0 — 2022-08-21

No release notes.

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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 2026-09-01.*