Best Conception Date Calculator Apps

249+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated September 2026

Looking for free conception date calculator apps? 20 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Conception Date Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Pregnancy Calculators ProPregnancy Calculators ProFreeYesNoMay 2026
2Pregnancy Calculator & DiaryPregnancy Calculator & DiaryFree4.6★ (355)YesYesSep 2026
3Due Date Calculator: FertilityDue Date Calculator: FertilityFree4.6★ (13)NoNoMay 2026
4Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (90K)NoNoSep 2026
5BabyCenter Pregnancy TrackerBabyCenter Pregnancy TrackerFree4.9★ (296K)YesNoSep 2026
6Premom-Ovulation Tracker, PCOSPremom-Ovulation Tracker, PCOSFree4.8★ (59K)NoYesSep 2026
7Gestation Calculator - POG CalGestation Calculator - POG CalFreeNoNoMay 2026
8Date CheckDate CheckFree5.0★ (2)NoNoMay 2026

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FAQ about Conception Date Calculator

Are there free conception date calculator apps for iPhone?
Yes — 20 of the top conception date calculator apps we rank are free to download, including Pregnancy Calculators Pro and Pregnancy Calculator & Diary.
Pregnancy Calculators Pro shows ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 249+ conception date calculator apps on the iOS App Store as of September 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.