This app calculates estimated due dates for pregnancy, particularly for those undergoing fertility treatments like embryo transfer or IUI. It can also determine due dates based on ovulation or natural conception.

246+ iOS apps curated and reviewed
The best due date conception apps on iPhone average 3.9★ across 246+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.6★ (13) | No | No | May 2026 | |
| 2 | Free | 4.2★ (55) | Yes | Yes | Aug 2026 | |
| 3 | Free | — | No | Yes | Aug 2026 | |
| 4 | Free | — | Yes | Yes | Aug 2026 | |
| 5 | Free | 1.0★ (5) | No | Yes | May 2026 | |
| 6 | Free | 5.0★ (2) | No | No | May 2026 | |
| 7 | Free | — | Yes | No | May 2026 | |
| 8 | Free | — | No | Yes | Aug 2026 |

This app calculates estimated due dates for pregnancy, particularly for those undergoing fertility treatments like embryo transfer or IUI. It can also determine due dates based on ovulation or natural conception.






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.










Estimate key pregnancy dates, including conception, due date, and trimester milestones. Input your last menstrual period to receive personalized date calculations for various pregnancy stages.


Track pregnancy progress with detailed countdowns. View remaining time in various units like weeks, days, or even hours. Personalize your experience by adding your baby's name.






Calculate your baby's estimated due date based on your last menstrual period. This app provides a countdown to your baby's birth, helping you track your pregnancy.




Calculate your pregnancy due date and track your baby's growth week by week. Prepare for your baby's arrival with helpful tips, explore names, and connect with a supportive community of mothers.




This AI-powered planner helps college students organize their academic life. Upload your syllabus to automatically generate a visual calendar with all deadlines, exams, and assignments. Receive smart reminders and personalized study plans to stay ahead.




This app functions as a digital OB wheel, allowing users to easily estimate their baby's due date by sliding a wheel. It also provides gestation week dates and predicts the baby's zodiac sign.


Easily calculate gestational age and due dates based on your last menstrual period or due date. This app provides simple, straightforward tools for pregnancy tracking.


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.


Track your menstrual cycle, fertility, pregnancy, postpartum recovery, and menopause with personalized insights and expert articles. This app offers tools for ovulation prediction, baby growth tracking, and symptom management.


Calculate and track your pregnancy journey with customizable widgets and weekly insights. Stay informed about your baby's development and find motivation with parenting quotes. Perfect for expecting mothers.


This app calculates the time between two dates in various units, including months, weeks, days, and business days. It allows users to save calculations, set countdowns to important events, and track durations for both personal and professional use.