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.

244+ iOS apps curated and reviewed
The best due date calculator fertility apps on iPhone average 3.9★ across 244+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.6★ (13) | No | No | Oct 2026 | ||
| 2 | Free | 4.4★ (635) | Yes | Yes | Nov 2026 | ||
| 3 | Free | — | Yes | Yes | Jul 2026 | ||
| 4 | Free | — | Yes | No | May 2026 | ||
| 5 | Free | 2.7★ (3) | No | No | Jul 2026 | ||
| 6 | Free | 4.0★ (5) | No | No | Oct 2026 | ||
| 7 | Free | 1.0★ (5) | No | Yes | Nov 2026 | ||
| 8 | Free | — | No | Yes | Oct 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 users track their menstrual cycles, predict ovulation dates, and identify fertile windows. It also assists in calculating pregnancy test dates and expected labor dates, offering a comprehensive tool for family planning and fertility awareness.



