Best Due Date Caculate Apps

238+ iOS apps curated and reviewed

4.0 avg rating
18 free apps
Updated August 2026

From beginner-friendly picks to power-user tools, our due date caculate list covers 238+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.

Compare top Due Date Caculate Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Due Date Calculator: FertilityDue Date Calculator: FertilityFree4.6★ (13)NoNoMay 2026
2Pregnancy Due Date Quickly Calculator - Pregnant,Baby Tracker,Countdown Birth CalendarPregnancy Due Date Quickly Calculator - Pregnant,Baby Tracker,Countdown Birth CalendarFree1.0★ (3)NoNoMay 2026
3Pregnancy Tracker: Due DatePregnancy Tracker: Due DateFreeYesYesAug 2026
4Pregnancy Due Dates CalculatorPregnancy Due Dates CalculatorFreeNoNoMay 2026
5OB Wheel Due Date CalculatorOB Wheel Due Date CalculatorFreeNoYesAug 2026
6Pregnancy Due Date, CalculatorPregnancy Due Date, CalculatorFree4.2★ (54)YesYesAug 2026
7Track My Pregnancy Due Date AITrack My Pregnancy Due Date AIFree4.1★ (132)NoYesAug 2026
8Pregnancy Due DatePregnancy Due DateFree1.0★ (5)NoYesMay 2026

Top Picks for Due Date Caculate

Due Date Calculator: Fertility#1

Due Date Calculator: Fertility by ViralMD

For Fertility Treatments
Editor's Choice
🏥 Medical
4.6(13 ratings)
Free
Due Date Calculator: Fertility screenshot 1

This app calculates estimated due dates for pregnancy, particularly for those undergoing fertility treatments like embryo transfer or IUI. It can also determine due dates based on ovulation or natural conception.

More Due Date Caculate apps to explore

4
Pregnancy Due Dates Calculator
Pregnancy Due Dates Calculator
Pregnancy Due Dates Calculator
Tracker, Milestone, Progress
Free

This app helps pregnant individuals and healthcare providers track pregnancy progress. It calculates due dates, gestational age, and milestones based on various inputs, offering helpful tips for a healthy pregnancy.

Calculate estimated due date (EDD)Track gestational age and progressInput based on LMP, conception, or ultrasound
💪 Health & Fitness
(0)
free
5
OB Wheel Due Date Calculator
OB Wheel Due Date Calculator
OB Wheel Due Date Calculator
Pregnancy & Gestation Tracker
Free
💪 Health & Fitness
(0)
6
Pregnancy Due Date, Calculator
Pregnancy Due Date, Calculator
Pregnancy Due Date, Calculator
Conception Date & Calendar
Free

This app helps you track your pregnancy, calculate your due date, and understand each stage. It provides week-by-week summaries of your baby's development and your body's changes, allowing you to log notes for later review or to share with your doctor.

Complete pregnancy calculatorWeek by week pregnancy updatesRecord pregnancy notes
💪 Health & Fitness
(54)
free with in-app purchases
7
Track My Pregnancy Due Date AI
Track My Pregnancy Due Date AI
Track My Pregnancy Due Date AI
Baby Countdown - Calculator
Free

Calculate and track your pregnancy journey with customizable widgets and weekly insights. Stay informed about your baby's development and find motivation with parenting quotes. Perfect for expecting mothers.

Calculate and track due dateCustomizable countdown widgetsWeek-by-week pregnancy information
🏥 Medical
(132)
free with in-app purchases
8
Pregnancy Due Date
Pregnancy Due Date
Pregnancy Due Date
by Malay Patel
Free

Estimate key pregnancy dates, including conception, due date, and trimester milestones. Input your last menstrual period to receive personalized date calculations for various pregnancy stages.

Estimate conception datesCalculate highest fetal risk datesDetermine organ forming dates
💪 Health & Fitness
(5)
free with in-app purchases
9
Date Wheel date calculator
Date Wheel date calculator
Date Wheel date calculator
by Creative Algorithms
$4.99

This app calculates the time between two dates in various units, including months, weeks, days, and business days. It allows users to save calculations, set countdowns to important events, and track durations for both personal and professional use.

Calculate time between datesUnits: months, weeks, days, business daysSave and manage calculations
💼 Business
(97)
paid
10
Pregnancy Tracker & Baby Bump
Pregnancy Tracker & Baby Bump
Pregnancy Tracker & Baby Bump
Pregnant Due Date Calculator
Free
💪 Health & Fitness
(0)
11
Pregnancy Tracker Week by Week
Pregnancy Tracker Week by Week
Pregnancy Tracker Week by Week
Pregnancy Calculator, Due Date
Free

This app guides expectant mothers through each stage of pregnancy, week by week. It provides insights into baby development and bodily changes, acting as a calculator and tracker. Features include kick counting and contraction timing.

Track pregnancy week by weekMonitor baby development weeklyUnderstand bodily changes
🏥 Medical
(266)
free with in-app purchases
12
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
🔧 Utilities
(131)
free with in-app purchases
13
Date Calculator - TimeRange
Date Calculator - TimeRange
Date Calculator - TimeRange
Work day counter & countdown
Free

Easily calculate the difference between dates, add or subtract days, and create custom countdowns. Personalize your workweek and skip specific dates for accurate workday calculations. Track events with home screen widgets and receive timely notifications.

Add/subtract days, weeks, months, yearsCustomizable workweek calculationsSkip specific dates
📊 Productivity
(198)
free with in-app purchases
14
Obstetrics Calculator
Obstetrics Calculator
Obstetrics Calculator
by Alexander Snegirev
Free

This medical app provides a comprehensive suite of tools for calculating gestational age, estimated due dates, and various risk assessments related to pregnancy and women's health. It includes calculators for maternity leave, cervical assessments, and cancer risk estimations, designed for healthcare professionals.

Gestational age and due date calculationMultiple calculation methods (LMP, ultrasound, IVF)Maternity leave timeframe estimation
🏥 Medical
(1)
free with in-app purchases
15
Pregnancy Tracker & Due Date
Pregnancy Tracker & Due Date
Pregnancy Tracker & Due Date
by Hao Tran
Free
💪 Health & Fitness
(0)
16
Pregnancy Calculators Pro
Pregnancy Calculators Pro
Pregnancy Calculators Pro
Maternity and Motherhood
Free

This app helps healthcare practitioners and pregnant women track pregnancy progress. It calculates gestational age, estimated due dates, and fetal weight using various formulas. It also offers helpful tips and recommendations for diet, exercise, and antenatal care.

Gestational age calculationEstimated due date (EDD) calculatorFetal weight estimation
💪 Health & Fitness
(0)
ad-supported
17
Time Jump - Date Calculator
Time Jump - Date Calculator
Time Jump - Date Calculator
With side-by-side calendars!
$7.99

Easily calculate the difference between dates, including business days, with side-by-side calendars. Add or subtract time periods and integrate with your device's calendar for event viewing and management.

Calculate days between datesBusiness day calculationsSide-by-side calendar view
🔧 Utilities
(5)
paid
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
🏥 Medical
(0)
ad-supported
19
Easy Date Calculator, Keyboard
Easy Date Calculator, Keyboard
Easy Date Calculator, Keyboard
Easily calculate target date
Free

Calculate future or past dates from a specific start point, or get the current date and time. Includes a custom keyboard for fast date entry in other applications and supports various date formats.

Calculate target datesGet current date and timeCustom keyboard for date entry
🔧 Utilities
(15)
free
20
The Date and Time Calculator
The Date and Time Calculator
The Date and Time Calculator
Days Between Dates & Duration
Free

Easily calculate the duration between two dates and times. Add or subtract days and time to a specific date to find future or past events. Share your calculations and see results in various units like days, weeks, months, years, hours, minutes, and seconds.

Calculate time between datesAdd/subtract days and timeShare calculation results
🔧 Utilities
(19)
free

FAQ about Due Date Caculate

What are the best due date caculate apps for iPhone?
Due Date Calculator: Fertility tops our due date caculate apps ranking as of August 2026, with a 4.6-star average from 13 App Store ratings, and it's free to download.
Yes — 18 of the top due date caculate apps we rank are free to download, including Due Date Calculator: Fertility and Pregnancy Due Date Quickly Calculator - Pregnant,Baby Tracker,Countdown Birth Calendar.
Due Date Calculator: Fertility has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 238+ due date caculate apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
The Due Date Calculator app is primarily used to calculate estimated pregnancy due dates, especially for individuals who have undergone fertility treatments such as embryo transfer, IUI, or egg retrieval. It can also calculate due dates based on ovulation or natural conception.
Pregnancy due dates are estimations, and most women deliver within a two-week window before or after their anticipated due date. The app provides the most accurate estimation possible based on the data entered.