Best Due Date Calculator Fertility Apps

243+ iOS apps curated and reviewed

3.9 avg rating
19 free apps
Updated August 2026

The best due date calculator fertility apps on iPhone average 3.9★ across 243+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.

Compare top Due Date Calculator Fertility Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Due Date Calculator: FertilityDue Date Calculator: FertilityFree4.6★ (13)NoNoMay 2026
2EDD - EGA calculatorEDD - EGA calculatorFreeYesNoJul 2026
3IVF Pregnancy CalculatorIVF Pregnancy CalculatorFree5.0★ (5)NoNoJul 2026
4Ovulation & Fertility TrackerOvulation & Fertility TrackerFree4.5★ (2.7K)NoYesSep 2026
5Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (90K)NoNoSep 2026
6Obstetrics CalculatorObstetrics CalculatorFree5.0★ (1)YesYesAug 2026
7Period & Ovulation CalculatorPeriod & Ovulation CalculatorFree4.4★ (611)YesYesSep 2026
8Pregnancy Calculators ProPregnancy Calculators ProFreeYesNoMay 2026

Top Picks for Due Date Calculator Fertility

EDD - EGA calculator#2

EDD - EGA calculator by Kunlepaints Ltd

Simple, Fast, Straightforward
Strong Contender
🏥 Medical
0.0(0 ratings)
FreeAds
EDD - EGA calculator screenshot 1
EDD - EGA calculator screenshot 2
EDD - EGA calculator screenshot 3

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.

IVF Pregnancy Calculator#3

IVF Pregnancy Calculator by Tsong Law Group

Tracks surrogacy pregnancies
Worth Considering
🏥 Medical
5.0(5 ratings)
Free
IVF Pregnancy Calculator screenshot 1
IVF Pregnancy Calculator screenshot 2
IVF Pregnancy Calculator screenshot 3
IVF Pregnancy Calculator screenshot 4
IVF Pregnancy Calculator screenshot 5
IVF Pregnancy Calculator screenshot 6

This app helps track IVF pregnancies by calculating gestational age and estimated due dates based on embryo transfer dates. It supports multiple pregnancies, allows saving results, and integrates with your calendar. It also provides fun comparisons of fetal size to fruits.

More Due Date Calculator Fertility apps to explore

FAQ about Due Date Calculator Fertility

What are the best due date calculator fertility apps for iPhone?
Due Date Calculator: Fertility tops our due date calculator fertility apps ranking as of August 2026, with a 4.6-star average from 13 App Store ratings, and it's free to download.
Yes — 19 of the top due date calculator fertility apps we rank are free to download, including Due Date Calculator: Fertility and EDD - EGA calculator.
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 243+ due date calculator fertility 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.