Best Due Date Calculator Fertility Apps

198+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated May 2026

The best due date calculator fertility apps on iPhone average 4.6★ across 198+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for Due Date Calculator Fertility

Due Date Calculator: Fertility#1

Due Date Calculator: Fertility by ViralMD

For Fertility Treatments
Editor's Choice
🏥 Medical
4.6(13 ratings)
Free
Due Date Calculator: Fertility screenshot 1

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.

Ovia Cycle & Pregnancy Tracker#2

Ovia Cycle & Pregnancy Tracker by Ovuline, Inc.

Fertility, Ovulation, & Period
Strong Contender
🏥 Medical
4.8😊(89K ratings)
FreeAds
#88in Medical
Ovia Cycle & Pregnancy Tracker screenshot 1
Ovia Cycle & Pregnancy Tracker screenshot 2
Ovia Cycle & Pregnancy Tracker screenshot 3
Ovia Cycle & Pregnancy Tracker screenshot 4
Ovia Cycle & Pregnancy Tracker screenshot 5
Ovia Cycle & Pregnancy Tracker screenshot 6

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.

What We Love

  • 🚀 Excellent app
  • 👍 Comprehensive tracking
  • 💡 Helpful for TTC
  • 👍 Accurate predictions

Room to Improve

  • 🐛 Glitched/not working
  • 🐛 Inaccurate predictions
  • 💡 Need option to track miscarriage
Premom-Ovulation Tracker, PCOS#3

Premom-Ovulation Tracker, PCOS by Easy Healthcare Corporation

Period, Fertility & Pregnancy
Worth Considering
💪 Health & Fitness
4.8😊(57K ratings)
FreeAdsIn-App Purchases
#68in Health & Fitness
Premom-Ovulation Tracker, PCOS screenshot 1
Premom-Ovulation Tracker, PCOS screenshot 2
Premom-Ovulation Tracker, PCOS screenshot 3
Premom-Ovulation Tracker, PCOS screenshot 4
Premom-Ovulation Tracker, PCOS screenshot 5
Premom-Ovulation Tracker, PCOS screenshot 6

This app helps women track their menstrual cycles, predict ovulation, and monitor fertility to increase chances of conception. It offers personalized insights, expert guidance, and tools like BBT charting and ovulation test scanning. Users can also track pregnancy progress and connect with a supportive community.

What We Love

  • 🚀 Accurate ovulation tracking
  • 👍 Easy to use app
  • 💡 Helpful community support
  • 🚀 Affordable ovulation tests

Room to Improve

  • 🐛 Inconsistent data tracking
  • 🐛 Frequent app crashes
  • 🐛 Inaccurate ovulation predictions

More Due Date Calculator Fertility apps to explore

4
Glow Ovulation & Period App
Glow Ovulation & Period App
Glow Ovulation & Period App
FDA Listed Fertility Tracker
Free

Track your menstrual cycle, ovulation, and fertility signs with personalized insights. Improve your chances of getting pregnant and better understand your body. Connect with a supportive community for advice and shared experiences.

Menstrual cycle trackingOvulation predictionFertility sign tracking
💪 Health & Fitness
(74K)
freemium
5
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Period • Fertility Test Reader
Free

Easily track ovulation, predict fertile days, and understand your cycle. Scan test strips with your phone's camera for automatic analysis. Get personalized insights and reminders to maximize your chances of conception.

Accurate ovulation predictionsTest strip reader with auto-detectionPersonalized fertility window tracking
💪 Health & Fitness
(12K)
free with in-app purchases
6
Mira Fertility & Cycle Tracker
Mira Fertility & Cycle Tracker
Mira Fertility & Cycle Tracker
Fertility tracking & analysis
Free

This app uses AI to track your menstrual cycles and analyze hormonal data for fertility insights. It helps you understand your reproductive health, predict ovulation, and make informed decisions about your body. Access expert resources and personalized tips to optimize your fertility journey.

AI-powered cycle trackingHormonal data analysisFertility prediction
💪 Health & Fitness
(2.4K)
free
7
Femometer Fertility Tracker
Femometer Fertility Tracker
Femometer Fertility Tracker
Ovulation & Period Calendar
Free

This app helps women track their menstrual cycles, predict ovulation, and monitor fertility. It records period dates, symptoms, and test results to provide personalized insights and increase conception rates. It also supports users throughout pregnancy with tracking and educational resources.

Period and PMS trackingOvulation and fertile window predictionBasal Body Temperature (BBT) charting
💪 Health & Fitness
(70K)
free with in-app purchases
8
Kindara: Fertility Tracker
Kindara: Fertility Tracker
Kindara: Fertility Tracker
Ovulation & fertility tracker
Free

Understand your menstrual cycle and reproductive health with science-backed tools. Track fertility signs, get data-driven predictions, and connect with a supportive community. Ideal for managing fertility, pregnancy planning, or discussing health with your doctor.

Fertility sign tracking (BBT, cervical mucus, etc.)Data-driven fertility and period predictionsCustomizable data fields
🏥 Medical
(9.9K)
freemium
9
Natural Cycles Fertility App
Natural Cycles Fertility App
Natural Cycles Fertility App
Decode your hormonal health
Free

This app helps women track their hormonal health and fertility using body temperature data. It offers hormone-free contraception, pregnancy planning, and insights into various cycle stages. It adapts to individual cycles, even irregular ones, providing daily fertility status.

Hormone-free contraceptionOvulation tracking via temperaturePersonalized cycle adaptation
💪 Health & Fitness
(29K)
subscription
10
Ovulation Calculator Fertile Tracker & Calendar OC
Ovulation Calculator Fertile Tracker & Calendar OC
Ovulation Calculator Fertile Tracker & Calendar OC
by Ovulation Calculator Pty Ltd
Free

This app helps users identify their most fertile days to increase the chances of conception. It analyzes personal cycle data, offers fertility knowledge, and provides access to a supportive community.

Cycle Data Analysis PredictionsOvulation CalculatorFertile Window Viewer
🏥 Medical
(5.9K)
free
11
Ovulation & Fertility Tracker
Ovulation & Fertility Tracker
Ovulation & Fertility Tracker
Track Menstrual Period & Cycle
Free

This app helps users track their menstrual cycles, predict ovulation dates, and identify fertile windows to increase chances of conception. It offers a user-friendly interface to input cycle details and provides reminders for periods and ovulation.

Ovulation calendarFertility predictionPeriod and ovulation reminders
💪 Health & Fitness
(2.7K)
subscription
12
Femia - Fertility & Pregnancy
Femia - Fertility & Pregnancy
Femia - Fertility & Pregnancy
Track Period & Ovulation Cycle
Free

This app supports women on their journey to motherhood, offering personalized guidance to optimize fertility and track pregnancy. It provides insights into baby development with 3D models and offers 24/7 access to expert health advice and personalized reports.

Fertility optimization plansPersonalized pregnancy advice3D baby development tracking
💪 Health & Fitness
(5.5K)
freemium
13
ClevCalc - Calculator
ClevCalc - Calculator
ClevCalc - Calculator
All-In-One Calculator
Free

This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.

Scientific calculatorUnit converterCurrency converter
📊 Productivity
(12K)
free with in-app purchases
14
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Ovulation Cycle & Fertile Days
Free

This app helps women track their ovulation and fertile days with advanced charting tools. It provides personalized insights into your cycle, helping you understand your fertility signs and maximize your chances of conception. Millions of women trust it for accurate cycle analysis and pregnancy tracking.

Ovulation detectionFertile window predictionBBT and cervical fluid tracking
💪 Health & Fitness
(7.3K)
freemium
15
Fertility & Period Tracker
Fertility & Period Tracker
Fertility & Period Tracker
Menstrual & Ovulation Calendar
Free

Track your menstrual cycle and ovulation with a scientifically based fertility calendar. Predict your next period, fertile days, and even explore baby gender prediction methods. Syncs with Apple Health for seamless data management.

Menstrual cycle trackingOvulation predictionFertile window identification
🏥 Medical
(1.7K)
free with in-app purchases
16
Menstrual Calendar FMC
Menstrual Calendar FMC
Menstrual Calendar FMC
Period Tracker, Fertile Days
Free

This app helps you track your menstrual cycle, predict periods and fertile days, and record wellness data. It offers customizable tracking, discreet notifications, and privacy features for personal cycle management.

Period and flow recordingMood and wellness trackingFertility sign logging
💪 Health & Fitness
(190)
free
17
Inito Fertility & Ovulation
Inito Fertility & Ovulation
Inito Fertility & Ovulation
Smartest Ovulation Tracker!
Free

This app tracks fertility and ovulation by measuring four key hormones. It identifies your most fertile days and confirms ovulation, personalizing insights for regular and irregular cycles. Get detailed results and cycle insights with this smart fertility monitor and app.

Tracks 6 fertile daysConfirms ovulationMeasures 4 fertility hormones
💪 Health & Fitness
(4.2K)
free with in-app purchases
18
MyDays X
MyDays X
MyDays X
Period & Ovulation Calendar
Free

This app helps women track their menstrual cycles, predict fertile days, and monitor various health symptoms. It offers intelligent notifications, a community chat, and detailed tracking options for a comprehensive overview of reproductive health.

Period and ovulation predictionFertile day trackingSymptom and mood logging
🌟 Lifestyle
(691)
free with in-app purchases
19
Prelude Connect
Prelude Connect
Prelude Connect
Prelude Fertility
Free

Manage your fertility journey with this app, offering an interactive calendar, direct messaging with your care team, and 24/7 access to your account. Track medications, appointments, and receive important notifications to stay on course.

Interactive fertility calendarCare team messaging24/7 account portal access
🏥 Medical
(928)
free
20
Cycle Tracker & Period: Cycles
Cycle Tracker & Period: Cycles
Cycle Tracker & Period: Cycles
Fertility & Ovulation App
Free

Track your menstrual cycle, fertility, and ovulation with ease. Log observations, predict fertile days, and manage irregular periods. Offers partner connection and detailed insights for better reproductive health management.

Cycle tracking at a glanceLog body and mood observationsFertile day predictions
💪 Health & Fitness
(26K)
freemium