Best Pregnancy Calculator Apps

249+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated August 2026

Out of 249+ pregnancy calculator apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Pregnancy Calculator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Pregnancy Calculators ProPregnancy Calculators ProFreeYesNoMay 2026
2FAST Pregnancy CalculatorFAST Pregnancy CalculatorFree4.0★ (5)NoNoAug 2026
3Pregnancy + | Tracker AppPregnancy + | Tracker AppFree4.8★ (75K)YesYesAug 2026
4Pregnancy Baby Tracker - WTEPregnancy Baby Tracker - WTEFree4.9★ (378K)YesNoAug 2026
5Pregnancy App.Pregnancy App.Free4.9★ (23K)YesNoAug 2026
6BabyCenter Pregnancy TrackerBabyCenter Pregnancy TrackerFree4.9★ (294K)YesNoAug 2026
7Pregnancy Calculator & DiaryPregnancy Calculator & DiaryFree4.6★ (329)YesYesAug 2026
8Pregnancy Tracker Week by WeekPregnancy Tracker Week by WeekFree4.4★ (267)YesYesAug 2026

Top Picks for Pregnancy Calculator

Pregnancy Calculators Pro#1

Pregnancy Calculators Pro by Putu Angga Risky Raharja

Maternity and Motherhood
Editor's Choice
💪 Health & Fitness
0.0(0 ratings)
FreeAds
Pregnancy Calculators Pro screenshot 1
Pregnancy Calculators Pro screenshot 2
Pregnancy Calculators Pro screenshot 3
Pregnancy Calculators Pro screenshot 4
Pregnancy Calculators Pro screenshot 5
Pregnancy Calculators Pro screenshot 6

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.

FAST Pregnancy Calculator#2

FAST Pregnancy Calculator by Onur Ince

For Healthcare Professionals
Strong Contender
🏥 Medical
4.0(5 ratings)
Free
FAST Pregnancy Calculator screenshot 1
FAST Pregnancy Calculator screenshot 2
FAST Pregnancy Calculator screenshot 3
FAST Pregnancy Calculator screenshot 4
FAST Pregnancy Calculator screenshot 5

This medical app helps healthcare professionals quickly calculate pregnancy gestation weeks using last menstrual period dates or ultrasound scan data. It provides pregnancy progress information and is designed for busy medical staff.

Pregnancy + | Tracker App#3

Pregnancy + | Tracker App by Philips Digital UK Limited

Pregnant? Join over 80m moms!
Worth Considering
🏥 Medical
4.8😊(75K ratings)
FreeAdsIn-App Purchases
#4in Medical
Pregnancy + | Tracker App screenshot 1
Pregnancy + | Tracker App screenshot 2
Pregnancy + | Tracker App screenshot 3
Pregnancy + | Tracker App screenshot 4
Pregnancy + | Tracker App screenshot 5
Pregnancy + | Tracker App screenshot 6

Track your pregnancy week-by-week with expert advice, daily articles, and interactive 3D models of your baby's development. Features include a due date calculator, kick counter, and tools to plan for labor and organize appointments. Join millions of expecting parents worldwide.

What We Love

  • 🚀 Excellent pregnancy tracking app
  • 👍 Informative and useful features
  • 💡 Realistic 3D baby visuals
  • 👍 Helpful weekly updates and articles

Room to Improve

  • 🐛 Inaccurate due date and week calculations
  • 🐛 Bugs with loading articles and content
  • 💰 Paywall after 14 weeks

More Pregnancy Calculator apps to explore

4
Pregnancy Baby Tracker - WTE
Pregnancy Baby Tracker - WTE
Pregnancy Baby Tracker - WTE
Track Development & Growth
Free

This app guides you through pregnancy and early parenthood with weekly updates, development trackers, and expert advice. It helps you monitor your baby's growth, manage symptoms, and connect with other parents.

Week-by-week pregnancy trackerDue date calculatorBaby development and growth tracking
🏥 Medical
(378K)
free with in-app purchases
5
Pregnancy App.
Pregnancy App.
Pregnancy App.
Start tracking your pregnancy!
Free

Track your pregnancy week by week with this comprehensive app. It offers tools to monitor your progress, calculate your due date, and manage key pregnancy milestones like contractions and kicks. Stay informed and organized throughout your journey.

Track pregnancy week by weekPregnancy calendar and week informationCalculate due date
🏥 Medical
(23K)
ad-supported
6
BabyCenter Pregnancy Tracker
BabyCenter Pregnancy Tracker
BabyCenter Pregnancy Tracker
Track Baby Daily & Get Rewards
Free

This app helps you track your pregnancy week-by-week, monitor your baby's development, and access expert advice. It also offers a loyalty program for exclusive discounts and a community forum for support.

Week-by-week pregnancy tracking3-D fetal development videosLoyalty program for discounts
🏥 Medical
(294K)
free with in-app purchases
7
Pregnancy Calculator & Diary
Pregnancy Calculator & Diary
Pregnancy Calculator & Diary
Baby Calendar, Dates, Due Date
Free

Easily estimate your baby's due date and conception date. Track your pregnancy week-by-week with insights and record important details in a personal diary. Access helpful articles and tips tailored to each stage.

Due date estimationConception date calculationWeek-by-week pregnancy tracking
💪 Health & Fitness
(329)
free with in-app purchases
8
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
(267)
free with in-app purchases
9
Pregnancy Guide and Calculator
Pregnancy Guide and Calculator
Pregnancy Guide and Calculator
Complete Pregnancy Guide
Free
🔧 Utilities
(0)
10
Pregnancy Calculator & Tracker
Pregnancy Calculator & Tracker
Pregnancy Calculator & Tracker
Pregnancy Tracker and Due Date
Free
💪 Health & Fitness
(0)
11
Garbhgyan Pregnancy Calculator
Garbhgyan Pregnancy Calculator
Garbhgyan Pregnancy Calculator
LMP to EDD, Weeks & Months
Free

This app helps expecting mothers track their pregnancy by calculating the estimated delivery date from the last menstrual period. It provides insights into pregnancy progress, trimester status, and baby's estimated growth.

Calculate Estimated Delivery Date (EDD)Track pregnancy weeks and monthsMonitor trimester status
🔧 Utilities
(0)
free
12
The Bump: Baby & Pregnancy App
The Bump: Baby & Pregnancy App
The Bump: Baby & Pregnancy App
Baby Tracker, Growth & Names
Free

This app is a comprehensive pregnancy and baby tracker for expecting and new parents. It offers weekly updates on baby's growth with fun comparisons, a baby name finder, and daily advice from experts. It also includes helpful tools like a due date calculator, kick counter, and a food safety guide.

Weekly baby growth comparisonsBaby name finder3D interactive baby growth visualization
💪 Health & Fitness
(39K)
free with in-app purchases
13
Pregnancy Due Date, Calculator
Pregnancy Due Date, Calculator
Pregnancy Due Date, Calculator
Find out your due date
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
(52)
free with in-app purchases
14
Gestational Age - Pharmapedia
Gestational Age - Pharmapedia
Gestational Age - Pharmapedia
by Pharmapedia Private Limited
Free
📚 Education
(0)
15
MamaCare: Pregnancy Tracker
MamaCare: Pregnancy Tracker
MamaCare: Pregnancy Tracker
Baby Birth Log & Growth
Free
💪 Health & Fitness
(0)
16
Preg Calculator
Preg Calculator
Preg Calculator
by University of Wisconsin - Madison School of Veterinary Medicine
Free
📚 Education
(0)
17
Pregnancy Tracker · Luna Mom
Pregnancy Tracker · Luna Mom
Pregnancy Tracker · Luna Mom
pregnancy,baby,mom,baby names
Free

Safely manage your pregnancy day by day and week by week with up-to-date information. Track your journey, monitor baby development, and access expert advice, recipes, and relaxation tools.

AI Expert VideosPregnancy DiaryWeekly Articles & Baby Development
🏥 Medical
(0)
freemium
18
Pregnancy Calculator + Tools
Pregnancy Calculator + Tools
Pregnancy Calculator + Tools
by OBAID JAZAA
Free
🏥 Medical
(0)
19
Calqsy - All in one calculator
Calqsy - All in one calculator
Calqsy - All in one calculator
50+ Calculators & Converters
Free
🔧 Utilities
(0)
20
Libre Pregnancy
Libre Pregnancy
Libre Pregnancy
No Signups Pregnancy Tracker
Free
🏥 Medical
(0)

FAQ about Pregnancy Calculator

Are there free pregnancy calculator apps for iPhone?
Yes — 20 of the top pregnancy calculator apps we rank are free to download, including Pregnancy Calculators Pro and FAST Pregnancy Calculator.
Pregnancy Calculators Pro shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 249+ pregnancy calculator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Pregnancy Calculators Pro calculates the estimated date of delivery (EDD) or due date based on your last menstrual period (LMP). It can also use ultrasonography (USG) biometrics like crown-rump length (CRL), biparietal diameter (BPD), and femur length (FL) for more precise calculations.
The app uses commonly used formulas for precise pregnancy parameter calculations. For fetal weight estimation, it utilizes the Hadlock or Shepard formulas.

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