Best Ovulation Calculator Day Apps

200+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated May 2026

With an average user rating of 4.6★, the ovulation calculator day category is one of the App Store's strongest. Browse all 200+ apps we track, sorted so the most loved ones surface first.

Top Picks for Ovulation Calculator Day

Premom-Ovulation Tracker, PCOS#1

Premom-Ovulation Tracker, PCOS by Easy Healthcare Corporation

Period, Fertility & Pregnancy
Editor's Choice
💪 Health & Fitness
4.8😊(57K ratings)
FreeAdsIn-App Purchases
#70in 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
Ovulation & Fertility Tracker#2

Ovulation & Fertility Tracker by KHANDAKER RAHMAN

Track Menstrual Period & Cycle
Strong Contender
💪 Health & Fitness
4.5😞(2.7K ratings)
FreeIn-App Purchases
Ovulation & Fertility Tracker screenshot 1
Ovulation & Fertility Tracker screenshot 2
Ovulation & Fertility Tracker screenshot 3
Ovulation & Fertility Tracker screenshot 4
Ovulation & Fertility Tracker screenshot 5
Ovulation & Fertility Tracker screenshot 6

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.

What We Love

  • 👍 Good
  • 👍 Prefect
  • 👍 Nice
  • 👍 Extremely personal and gives a sense of happiness

Room to Improve

  • 🐛 Very annoying app
  • 💸 Overly expensive subscription
  • 🔍 Selling user data
MyDays X#3

MyDays X by Christian Mueller

Period & Ovulation Calendar
Worth Considering
🌟 Lifestyle
3.3😞(691 ratings)
FreeAdsIn-App Purchases
MyDays X screenshot 1
MyDays X screenshot 2
MyDays X screenshot 3
MyDays X screenshot 4
MyDays X screenshot 5
MyDays X screenshot 6

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.

What We Love

  • ⭐ Accurate period and ovulation tracking
  • 📆 Helpful for planning and conceiving
  • 💻 Easy to use and navigate
  • 🗓️ Customizable tracking options

Room to Improve

  • 💢 Excessive and intrusive ads
  • ⏱️ Long ad wait times disrupting usage
  • 🐛 Crashes and bugs after updates

More Ovulation Calculator Day apps to explore

4
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
5
Ovulation & Fertile Days
Ovulation & Fertile Days
Ovulation & Fertile Days
Cycle Tracker & Period Tracker
Free

This app helps you understand your body by tracking your menstrual cycle and predicting ovulation and fertile days. It offers clear, simple, and reliable insights to help you plan for pregnancy or simply monitor your cycle's regularity.

Ovulation predictionFertile window identificationPeriod tracking with history
💪 Health & Fitness
(2)
free with in-app purchases
6
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
7
Glow Eve Period Tracker
Glow Eve Period Tracker
Glow Eve Period Tracker
Ovulation & Flow App
Free

This app helps women track their menstrual cycles, predict periods and ovulation, and log moods and symptoms. It offers insights into health trends and a supportive community for discussing sexual health.

Period and ovulation predictionMood and symptom loggingHealth data visualization
💪 Health & Fitness
(114K)
freemium
8
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
9
Period & Ovulation Calculator
Period & Ovulation Calculator
Period & Ovulation Calculator
Fertility Tracker & Calendar
Free

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.

Track period datesPredict ovulation datesIdentify fertile days
💪 Health & Fitness
(480)
free with in-app purchases
10
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Fertility, Ovulation, & Period
Free

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.

Period & Fertility calendarPregnancy tracker with baby growthPostpartum recovery modes
🏥 Medical
(89K)
free with in-app purchases
11
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
12
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
13
Flo Cycle & Period Tracker
Flo Cycle & Period Tracker
Flo Cycle & Period Tracker
Ovulation & Pregnancy Calendar
Free

This app helps women track their menstrual cycles, ovulation, and fertility. It offers personalized insights, pregnancy support, and tools for managing perimenopause symptoms, with a focus on data privacy and security.

Period and ovulation trackingFertility and pregnancy supportSymptom and mood logging
💪 Health & Fitness
(1.9M)
free with in-app purchases
14
Period Tracker and Calendar
Period Tracker and Calendar
Period Tracker and Calendar
Track your Cycle & Ovulation
Free

This app helps users track their menstrual cycle, including ovulation, fertility, and periods. It offers discreet reminders, detailed symptom logging, and personalized insights for better health management and planning. The app also includes features for birth control pill reminders and perimenopause tracking.

Track periods, ovulation, and fertilityLog symptoms, moods, and flowBirth control pill reminders
💪 Health & Fitness
(53K)
free with in-app purchases
15
Period Tracker - Menstrual & Ovulation Calendar
Period Tracker - Menstrual & Ovulation Calendar
Period Tracker - Menstrual & Ovulation Calendar
by BHI Technologies, Inc.
Free

This app helps users track their menstrual cycles, predict fertile and ovulation days, and log symptoms and moods. It offers smart cycle calculations and a pregnancy mode to assist with conception or avoidance. Features include passcode protection, data backup, and elegant design.

Track and predict period, fertile, and ovulation daysLog symptoms and moodsPregnancy mode
💪 Health & Fitness
(269)
free with in-app purchases
16
My Cycle ؜
My Cycle ؜
My Cycle ؜
Ovulation & Period Tracker
Free

Easily track your menstrual cycles and ovulation dates. Get timely reminders for your next period and identify your most fertile days for conception. This app also serves as a personal journal to log symptoms, mood changes, and other important events.

Period trackingOvulation predictionFertility window identification
💪 Health & Fitness
(72K)
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
Menstrual Period Tracker
Menstrual Period Tracker
Menstrual Period Tracker
Ovulation and Period Calendar
Free

This app helps track menstrual cycles and predict ovulation. It offers detailed symptom tracking, temperature charting, and notes, with seamless integration into the Health app. Enjoy a user-friendly interface and customizable options for a personalized experience.

Automatic period predictionOvulation day predictionSymptom tracking
💪 Health & Fitness
(16K)
free with in-app purchases
19
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
20
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