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.

243+ iOS apps curated and reviewed
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.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.6★ (13) | No | No | May 2026 | ||
| 2 | Free | — | Yes | No | Jul 2026 | ||
| 3 | Free | 5.0★ (5) | No | No | Jul 2026 | ||
| 4 | Free | 4.5★ (2.7K) | No | Yes | Sep 2026 | ||
| 5 | Free | 4.8★ (90K) | No | No | Sep 2026 | ||
| 6 | Free | 5.0★ (1) | Yes | Yes | Aug 2026 | ||
| 7 | Free | 4.4★ (611) | Yes | Yes | Sep 2026 | ||
| 8 | Free | — | Yes | No | May 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 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.






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.