Best Due Date Calculator Apps

247+ iOS apps curated and reviewed

4.1 avg rating
19 free apps
Updated September 2026

Looking for free due date calculator apps? 19 of our 247+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Due Date Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Pregnancy Baby Tracker - WTEPregnancy Baby Tracker - WTEFree4.9★ (379K)YesNoSep 2026
2Due Date Calculator: FertilityDue Date Calculator: FertilityFree4.6★ (13)NoNoMay 2026
3Obstetrics CalculatorObstetrics CalculatorFree5.0★ (1)YesYesAug 2026
4Due Date Calc: Baby ArrivalDue Date Calc: Baby ArrivalFreeYesNoMay 2026
5Pregnancy + | Tracker AppPregnancy + | Tracker AppFree4.8★ (75K)YesYesSep 2026
6BabyCenter Pregnancy TrackerBabyCenter Pregnancy TrackerFree4.9★ (296K)YesNoSep 2026
7Pregnancy Tracker: Due DatePregnancy Tracker: Due DateFreeYesYesAug 2026
8OB Wheel Pregnancy TrackerOB Wheel Pregnancy TrackerFree4.6★ (26)NoNoSep 2026

Top Picks for Due Date Calculator

Pregnancy Baby Tracker - WTE#1

Pregnancy Baby Tracker - WTE by Everyday Health, Inc.

Track Development & Growth
Editor's Choice
🏥 Medical
4.9😊(379K ratings)
FreeAds
#29in Medical
Pregnancy Baby Tracker - WTE screenshot 1
Pregnancy Baby Tracker - WTE screenshot 2
Pregnancy Baby Tracker - WTE screenshot 3
Pregnancy Baby Tracker - WTE screenshot 4
Pregnancy Baby Tracker - WTE screenshot 5
Pregnancy Baby Tracker - WTE screenshot 6

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.

What We Love

  • 🚀 Helpful information and videos
  • 👍 Useful for tracking pregnancy and baby's development
  • 👍 Great community support
  • 👍 Easy to use and navigate
  • 👍 Accurate and informative
  • 👍 Comprehensive features
  • 👍 Valuable resource for first-time moms

Room to Improve

  • 🐛 Freezing and lagging issues
  • 🔍 Inaccurate baby size comparisons
  • 💬 Toxic and unsupportive community
  • 🚫 Excessive ads and notifications
  • 🚫 Outdated or biased information
  • 🚫 Gender-specific language and assumptions
5.0(1 ratings)
FreeAdsIn-App Purchases
Obstetrics Calculator screenshot 1
Obstetrics Calculator screenshot 2
Obstetrics Calculator screenshot 3
Obstetrics Calculator screenshot 4
Obstetrics Calculator screenshot 5
Obstetrics Calculator screenshot 6

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.

More Due Date Calculator apps to explore

FAQ about Due Date Calculator

What are the best due date calculator apps for iPhone?
Pregnancy Baby Tracker - WTE tops our due date calculator apps ranking as of September 2026, with a 4.9-star average from 379K App Store ratings, and it's free to download.
Yes — 19 of the top due date calculator apps we rank are free to download, including Pregnancy Baby Tracker - WTE and Due Date Calculator: Fertility.
Pregnancy Baby Tracker - WTE shows ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 247+ due date calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app serves as a comprehensive guide for pregnancy and early parenthood. It offers week-by-week insights into baby development, helps track symptoms and milestones, provides expert advice, and connects users with a community of parents.
Key features include a due date calculator, week-by-week pregnancy updates, baby growth tracking, daily personalized tips, symptom logging, a baby feeding and diaper tracker, and community forums for support.

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