Best Due Date Calculator Apps

216+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated May 2026

Looking for free due date calculator apps? 19 of our 216+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Due Date Calculator

What to Expect Pregnancy App#1

What to Expect Pregnancy App by Everyday Health, Inc.

Track Development & Growth
Editor's Choice
🏥 Medical
4.9😊(375K ratings)
FreeAds
#28in Medical
What to Expect Pregnancy App screenshot 1
What to Expect Pregnancy App screenshot 2
What to Expect Pregnancy App screenshot 3
What to Expect Pregnancy App screenshot 4
What to Expect Pregnancy App screenshot 5
What to Expect Pregnancy App screenshot 6

A comprehensive pregnancy tracking app for expectant mothers that offers features like due date calculation, symptom tracking, appointment reminders, kick counter, and community support. Stay informed, organized, and connected throughout your pregnancy journey.

What We Love

  • 🚀 Helpful information and videos
  • 👍 Useful for tracking pregnancy and baby's development
  • 👍 Great community support
  • 👍 Easy to use and navigate

Room to Improve

  • 🐛 Freezing and lagging issues
  • 🔍 Inaccurate baby size comparisons
  • 💬 Toxic and unsupportive community
Due Date Calculator: Fertility#2

Due Date Calculator: Fertility by ViralMD

For Fertility Treatments
Strong Contender
🏥 Medical
4.6(13 ratings)
Free
Due Date Calculator: Fertility screenshot 1

This fertility-specific pregnancy due date calculator helps determine the due date for women who have undergone fertility treatments, such as embryo transfer, IUI, and egg retrieval, as well as those who conceived naturally. Simply select the calculation method, enter the relevant date, and get an estimated due date, gestational age, and likely conception date.

More Due Date Calculator apps to explore

4
Pregnancy + | Tracker App
Pregnancy + | Tracker App
Pregnancy + | Tracker App
Pregnant? Join over 80m moms!
Free

Download this premier pregnancy tracking app for weekly pregnancy information, expert advice, and interactive 3D models to track your baby's development. Join a global community of over 65 million expecting families today!

🏥 Medical
(73K)
5
BabyCenter Pregnancy Tracker
BabyCenter Pregnancy Tracker
BabyCenter Pregnancy Tracker
Track Baby Development & Size
Free

Track your baby's growth week by week with our top-rated pregnancy and parenting app. Get daily updates, expert advice, and personalized information tailored to your due date. Join the BabyCenter community for resources to enhance your pregnancy and parenting journey.

🏥 Medical
(290K)
6
OB Wheel Pregnancy Tracker
OB Wheel Pregnancy Tracker
OB Wheel Pregnancy Tracker
Due Date Countdown OBGYN
Free

This pregnancy tracker helps expecting mothers forecast key dates and milestones, offering various calculators to estimate due dates based on last period, ultrasound, or conception date. Download and start tracking your pregnancy journey, but be sure to consult healthcare professionals for precise insights.

🏥 Medical
(11)
7
The Bump: Baby & Pregnancy App
The Bump: Baby & Pregnancy App
The Bump: Baby & Pregnancy App
Baby Tracker, Growth & Names
Free

This application is specifically designed to help expectant mothers track their pregnancy journey, providing valuable information on fetal development, health tips, and appointment reminders. Stay informed and organized throughout your pregnancy with this all-in-one tool.

💪 Health & Fitness
(38K)
8
Pregnancy Tracker: Due Date
Pregnancy Tracker: Due Date
Pregnancy Tracker: Due Date
Baby Growth Week by Week
Free
💪 Health & Fitness
(0)
9
OB Wheel
OB Wheel
OB Wheel
Due Date Calculator
Free

This pregnancy journey companion app helps expectant mothers and healthcare professionals track pregnancy milestones with accuracy and ease, offering features such as due date calculation, fetal development tracking, and health tips. Download now and start your journey to motherhood with confidence and joy!

🏥 Medical
(7)
10
Pregnancy Due Date, Calculator
Pregnancy Due Date, Calculator
Pregnancy Due Date, Calculator
Find out your due date
Free

This pregnancy calculator helps you determine your due date, track your pregnancy stages, and receive weekly updates on your baby's development. With a user-friendly interface, you can easily calculate your due date, record notes, and access clear and concise information about your pregnancy.

💪 Health & Fitness
(52)
11
OB Wheel for Pregnancy
OB Wheel for Pregnancy
OB Wheel for Pregnancy
Due date trimester calculator
Free

This comprehensive pregnancy companion app provides expecting mothers and medical professionals with intuitive tools to calculate due dates, track trimesters, and determine measurements, offering a personalized and accurate experience. Download the app today to transform your pregnancy journey with essential information, guidance, and peace of mind.

🏥 Medical
(27)
12
Pregnancy Due Dates Calculator
Pregnancy Due Dates Calculator
Pregnancy Due Dates Calculator
Tracker, Milestone, Progress
Free

This app helps pregnant women and healthcare professionals track pregnancy progress, calculate due dates, and monitor milestones. It offers a user-friendly interface, useful tips, and various calculation methods, but users are advised to consult a doctor for accurate guidance.

💪 Health & Fitness
(0)
13
Date Calculator, Days Calc
Date Calculator, Days Calc
Date Calculator, Days Calc
Time: Add, Between, Difference
Free

A powerful yet intuitive application that allows you to effortlessly perform various date calculations, including determining the number of days between two dates, adding or subtracting from a date, and working with workdays. It's a versatile tool designed to make date-related tasks a breeze.

🔧 Utilities
(130)
14
Digits Tape Calculator
Digits Tape Calculator
Digits Tape Calculator
The calculator for humans
$1.99

Try Digits Tape Calculator, the calculator designed for humans. With a unique correctable tape feature, spreadsheet-like editing, and calculator simplicity, it's perfect for tracking expenses and budgets. Get organized on-the-go with Digits 3 for iOS.

🔧 Utilities
(1.1K)
15
Pregnancy Tracker・App by Moms
Pregnancy Tracker・App by Moms
Pregnancy Tracker・App by Moms
Week-by-Week Baby Growth Guide
Free

Track your pregnancy journey week by week with our comprehensive Pregnancy and Due Date Tracker app. Stay informed about your baby's development, schedule doctor's appointments, keep health records, access daily articles, and utilize tools like contraction counter and Kegel exercises. Download now to ensure a pleasant and informed pregnancy experience!

🏥 Medical
(14K)
16
Time Calculator - Work Hours
Time Calculator - Work Hours
Time Calculator - Work Hours
Date, Calendar & Salary Clock
Free

An app designed to streamline work hours calculations, helping users track their time with precision. Simplify your scheduling and stay organized effortlessly with Time Calculator⁺.

🔧 Utilities
(2.4K)
17
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

A versatile calculator app for iPhone and iPad offering over 40 calculators and unit converters for finance, health, and more. Simplify your calculations with just one app today!

📊 Productivity
(4.8K)
18
Pregnancy Calculator & Diary
Pregnancy Calculator & Diary
Pregnancy Calculator & Diary
Baby Calendar, Dates, Due Date
Free

This app helps you track your pregnancy by estimating your due date, conception date, and current pregnancy week, and provides week-by-week insights, a pregnancy diary, and helpful articles and tips. Download the app to stay informed and monitor your progress throughout your pregnancy journey.

💪 Health & Fitness
(329)
19
amma: Gravidez Semana a Semana
amma: Gravidez Semana a Semana
amma: Gravidez Semana a Semana
Fertility to Newborn Weekly
Free

A comprehensive pregnancy tracking app with features for monitoring health, receiving personalized tips, and connecting with healthcare professionals. Stay informed and supported throughout your pregnancy journey.

🏥 Medical
(6.2K)
20
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Fertility, Ovulation, & Period
Free

Track your fertility, menstrual cycle, and overall health with this comprehensive app. Monitor ovulation, record symptoms, and get personalized insights to help optimize your reproductive health. Download now to take control of your fertility journey.

🏥 Medical
(88K)

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