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Best Date Calculation Apps

246+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated August 2026

Date and Time Calculator is the household name in date calculation, but it's far from the only option. We track 246+ alternatives and competitors on iOS β€” many free, many higher-rated than you'd expect.

Compare top Date Calculation Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Date and Time CalculatorDate and Time CalculatorFree4.7β˜… (9.7K)YesNoAug 2026
2Time & Date CalculatorTime & Date CalculatorFree3.4β˜… (66)NoYesJul 2026
3Date Calendar CalculatorDate Calendar CalculatorFree4.9β˜… (29)YesYesAug 2026
4My Love - Relationship CounterMy Love - Relationship CounterFree4.8β˜… (957K)NoYesAug 2026
5The Date Calculator PROThe Date Calculator PROFree4.7β˜… (2.6K)YesYesAug 2026
6Date Calculator Β±Date Calculator Β±Freeβ€”NoNoJul 2026
7Date Calculator, Days CalcDate Calculator, Days CalcFree4.5β˜… (131)NoYesAug 2026
8Date & Time Calculator: DaysDate & Time Calculator: DaysFree4.8β˜… (25)YesYesAug 2026

Top Picks for Date Calculation

Date and Time Calculator#1

Date and Time Calculator by ε±± ι’Ÿ

Editor's Choice
πŸ”§ Utilities
4.7😐(9.7K ratings)
FreeAds
Date and Time Calculator screenshot 1
Date and Time Calculator screenshot 2
Date and Time Calculator screenshot 3

Calculate the exact number of days, hours, and seconds between any two dates. This tool also allows you to find the date before or after a specified period, making it useful for tracking deadlines, events, or financial products.

What We Love

  • πŸ’‘ Helpful for tracking dates and time
  • πŸ‘ Simple and easy to use
  • πŸš€ Accurate calculations
  • πŸš€ Useful for various purposes (medication management, work timelines, etc.)

Room to Improve

  • πŸ› Ads are intrusive and difficult to close
  • πŸ› Compatibility issues on iPad
  • πŸ› Bugs with date/time calculations
Time & Date Calculator#2

Time & Date Calculator by timeanddate.com

Perform calculations with time
Strong Contender
πŸ”§ Utilities
3.4(66 ratings)
FreeIn-App Purchases
Time & Date Calculator screenshot 1
Time & Date Calculator screenshot 2
Time & Date Calculator screenshot 3
Time & Date Calculator screenshot 4
Time & Date Calculator screenshot 5

Calculate exact durations between times, including seconds, and account for time zone differences and DST. View results in various units and share them easily. Supports a wide year range.

Date Calendar Calculator#3

Date Calendar Calculator by Yuno Solutions Sdn Bhd

Calculate Calendar Date & Time
Worth Considering
πŸ”§ Utilities
4.9(29 ratings)
FreeAdsIn-App Purchases
Date Calendar Calculator screenshot 1
Date Calendar Calculator screenshot 2
Date Calendar Calculator screenshot 3
Date Calendar Calculator screenshot 4
Date Calendar Calculator screenshot 5
Date Calendar Calculator screenshot 6

This app helps you calculate date and time durations, add or subtract time from dates, and determine working days. It also converts between calendars and time zones, and estimates ovulation and pregnancy due dates. The design is simple and intuitive.

More Date Calculation apps to explore

4
My Love - Relationship Counter
My Love - Relationship Counter
My Love - Relationship Counter
by Bjoern Bartels
Free

Track the duration of your relationship with your partner. It generates unique anniversaries based on days, months, and years together. Personalize the app with a photo and receive notifications for special dates.

Relationship duration trackingCustom anniversary generationPartner photo personalization
🌟 Lifestyle
(957K)
free with in-app purchases
5
The Date Calculator PRO
The Date Calculator PRO
The Date Calculator PRO
Calculate days between dates
Free

Easily calculate the duration between two dates, with or without accounting for the time of day. You can also add or subtract various time units from a specific date. The results are automatically converted into multiple units for your convenience.

Calculate duration between two datesInclude time of day in calculationsAdd/subtract years, months, weeks, days
πŸ”§ Utilities
(2.6K)
free with in-app purchases
6
Date Calculator Β±
Date Calculator Β±
Date Calculator Β±
Calculate dates and durations
Free
πŸ”§ Utilities
(0)
7
Date Calculator, Days Calc
Date Calculator, Days Calc
Date Calculator, Days Calc
Time: Add, Between, Difference
Free

Easily solve date math problems with multiple calculation options. This intuitive app helps you find the difference between dates, add or subtract days, and calculate workdays. It's simple and user-friendly for all your date-related needs.

Days Between Two DatesAdd to/Subtract from a DateWorkdays Calculator
πŸ”§ Utilities
(131)
free with in-app purchases
8
Date & Time Calculator: Days
Date & Time Calculator: Days
Date & Time Calculator: Days
Add, Subtract & Count Workdays
Free

Calculate the duration between two dates, including workdays, or add/subtract time units to a specific date. This tool helps with planning, scheduling, and tracking time-sensitive tasks with a clean, minimalist interface.

Count days, months, years between datesAdd or subtract date and time unitsCalculate business days in a range
πŸ”§ Utilities
(25)
free with in-app purchases
9
Days + Date + Time Calculator
Days + Date + Time Calculator
Days + Date + Time Calculator
Days Between Two Dates
Free

Calculate the duration between two dates and times. This tool helps you find the exact number of days, hours, and minutes between any two points in time.

Calculate days between datesCalculate duration between dates and timesCalculate duration between times
πŸ“Š Productivity
(862)
ad-supported
10
AmberDate - Date Calculator
AmberDate - Date Calculator
AmberDate - Date Calculator
Track Days & Time Intervals
Free

Easily calculate future dates and time intervals with a clean, intuitive interface. Features smart shortcuts, a scroll wheel picker, and one-tap copying for quick results. Ideal for planning projects, travel, or visa timelines.

Calculate future datesAdd days, weeks, or monthsSmart shortcuts for quick calculations
πŸ”§ Utilities
(2)
free
11
Date Calculator - DateMath
Date Calculator - DateMath
Date Calculator - DateMath
Days and time between dates
Free

Easily calculate the duration between two dates, with options for minute-level precision. Customize themes and languages for a personalized experience. Enjoy local calculations without needing an account.

Calculate days between datesOptional time selection for minute precisionClean, native iOS design
πŸ”§ Utilities
(1)
free with in-app purchases
12
Day Calculator
Day Calculator
Day Calculator
by Alejandro Barrientos
Free
πŸ”§ Utilities
(0)
13
Countdown & Count Up Timer
Countdown & Count Up Timer
Countdown & Count Up Timer
Event Reminders and Widgets
Free

Easily track important dates with customizable countdowns and count-ups. Never miss an anniversary, event, or milestone with home screen widgets and timely notifications. Personalize your tracking with custom backgrounds and text.

Unlimited event trackingHome and lock screen widgetsCustomizable notifications
πŸ“Š Productivity
(2.3K)
free with in-app purchases
14
Date Calculator Plus
Date Calculator Plus
Date Calculator Plus
Time, Dates, and Calendar
Free
πŸ”§ Utilities
(0)
15
Simple Date Calculator
Simple Date Calculator
Simple Date Calculator
Days between, time & duration
$0.99
πŸ”§ Utilities
(0)
16
Number of Days Calculator
Number of Days Calculator
Number of Days Calculator
Calculate number of days, date
Free
πŸ”§ Utilities
(0)
17
Softricks Date Calculator
Softricks Date Calculator
Softricks Date Calculator
by Softricks Inc.
Free
πŸ”§ Utilities
(0)
18
EDD - EGA calculator
EDD - EGA calculator
EDD - EGA calculator
Simple, Fast, Straightforward
Free

This medical app helps calculate Estimated Due Date (EDD) and Estimated Gestational Age (EGA). It offers two methods for calculation: using the Last Menstrual Period (LMP) or a provided EDD from Ultrasound (USS). The interface is designed for simplicity and speed.

Calculate EDD using LMPCalculate EDD using USSCalculate EGA
πŸ₯ Medical
(0)
ad-supported
19
Age Calculator Pro Max
Age Calculator Pro Max
Age Calculator Pro Max
Date & Age Made Easy!
Free
πŸ“š Education
(0)
20
Weeks β€’ Never Forget Any Date
Weeks β€’ Never Forget Any Date
Weeks β€’ Never Forget Any Date
Never Forget Any Age
Free
πŸ“Š Productivity
(0)

FAQ about Date Calculation

What are the best date calculation apps for iPhone?
Date and Time Calculator tops our date calculation apps ranking as of August 2026, with a 4.7-star average from 9.7K App Store ratings, and it's free to download.
Yes β€” 19 of the top date calculation apps we rank are free to download, including Date and Time Calculator and Time & Date Calculator.
Date and Time Calculator shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 246+ date calculation apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This application allows you to calculate the precise duration between any two given dates, down to the second. It can also determine future or past dates based on a specified period.
Key features include calculating the exact time distance between any two points in time, down to the second. It also offers functionality to find the date before or after a certain period, useful for planning and tracking.

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