Best Ovulation Calculator App

203+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our ovulation calculator app list covers 203+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Compare top Ovulation Calculator App (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Ovulation Calculator AppOvulation Calculator AppFree5.0★ (1)NoNoMay 2026
2Clue Period & Cycle TrackerClue Period & Cycle TrackerFree4.8★ (399K)YesYesJul 2026
3Period Tracker Period CalendarPeriod Tracker Period CalendarFree4.9★ (171K)YesYesJul 2026
4Glow Ovulation & Period AppGlow Ovulation & Period AppFree4.7★ (74K)YesYesJul 2026
5Natural Cycles Fertility AppNatural Cycles Fertility AppFree4.8★ (29K)YesYesJul 2026
6Period Tracker and CalendarPeriod Tracker and CalendarFree4.8★ (53K)YesYesJul 2026
7Premom-Ovulation Tracker, PCOSPremom-Ovulation Tracker, PCOSFree4.8★ (57K)YesYesJul 2026
8Ovulation Calculator Fertile Tracker & Calendar OCOvulation Calculator Fertile Tracker & Calendar OCFree4.6★ (5.9K)NoNoJul 2026

Top Picks for Ovulation Calculator App

Ovulation Calculator App#1

Ovulation Calculator App by ViralMD

Editor's Choice
🏥 Medical
5.0(1 ratings)
Free
Ovulation Calculator App screenshot 1
Ovulation Calculator App screenshot 2

This fertility companion helps women track their cycles to understand their fertile window. Input your last period date and cycle length to calculate ovulation and identify optimal times for conception or avoidance.

Clue Period & Cycle Tracker#2

Clue Period & Cycle Tracker by BioWink GmbH

Ovulation & Fertility Calendar
Strong Contender
💪 Health & Fitness
4.8😐(399K ratings)
FreeAdsIn-App Purchases
#53in Health & Fitness
Clue Period & Cycle Tracker screenshot 1
Clue Period & Cycle Tracker screenshot 2
Clue Period & Cycle Tracker screenshot 3
Clue Period & Cycle Tracker screenshot 4
Clue Period & Cycle Tracker screenshot 5
Clue Period & Cycle Tracker screenshot 6

This app helps women and people with cycles understand their bodies through period tracking, fertility predictions, and health insights. It offers personalized forecasts, tracks over 100 experiences, and provides science-based content. Connect wearables for advanced health analysis.

What We Love

  • 🚀 Accurate predictions
  • 📊 Helpful data analysis
  • 🗓️ Convenient period tracking
  • 🌈 Inclusive and gender-neutral

Room to Improve

  • 💰 Paywall for key features
  • 🔍 Difficult to access personal data
  • 🔄 Frequent app updates causing issues
Period Tracker Period Calendar#3

Period Tracker Period Calendar by ABISHKKING LIMITED.

Cycle Tracker & Ovulation
Worth Considering
💪 Health & Fitness
4.9😊(171K ratings)
FreeAdsIn-App Purchases
#41in Health & Fitness
Period Tracker Period Calendar screenshot 1
Period Tracker Period Calendar screenshot 2
Period Tracker Period Calendar screenshot 3
Period Tracker Period Calendar screenshot 4
Period Tracker Period Calendar screenshot 5
Period Tracker Period Calendar screenshot 6

This app helps women track their menstrual cycles, ovulation, and fertility. It offers personalized advice, pregnancy tracking, and reminders for birth control and medication. Your data is kept private and stored locally on your device.

What We Love

  • ⭐ Accurate period tracking
  • 📆 Helpful calendar and diary features
  • 🌟 Customizable themes and pets
  • 🔍 Comprehensive symptom and health tracking

Room to Improve

  • 🔍 Unclear symptom definitions
  • 🔔 Intrusive and unskippable ads
  • 🔒 Concerns about data privacy and security

More Ovulation Calculator App 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
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
6
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
7
Premom-Ovulation Tracker, PCOS
Premom-Ovulation Tracker, PCOS
Premom-Ovulation Tracker, PCOS
Period, Fertility & Pregnancy
Free

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.

Ovulation test scanning and LH level quantificationAutomatic BBT thermometer syncing and chartingPeriod and cycle logging with symptom tracking
💪 Health & Fitness
(57K)
free with in-app purchases
8
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
9
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
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
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
12
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
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
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
15
Ovulation: Period Calculator
Ovulation: Period Calculator
Ovulation: Period Calculator
Fertility & Pregnancy Calendar
Free
💪 Health & Fitness
(0)
16
Ovulation Date Calculator
Ovulation Date Calculator
Ovulation Date Calculator
Track predict fertility date
Free
💪 Health & Fitness
(0)
17
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
18
My Period & Ovulation Calendar
My Period & Ovulation Calendar
My Period & Ovulation Calendar
Track Cycles & Fertility App
Free

This app helps women and teens track their menstrual cycles, ovulation, and fertility. It offers tools for planning or trying to conceive, with customizable features to monitor symptoms and moods for a comprehensive view of reproductive health.

Cycle trackingOvulation predictionFertile day calculation
💪 Health & Fitness
(22)
free with in-app purchases
19
MyFlo® Period Tracker Calendar
MyFlo® Period Tracker Calendar
MyFlo® Period Tracker Calendar
Cycle Syncing® & Ovulation
Free

This app helps women understand and optimize their hormonal health by tracking menstrual cycles, predicting ovulation, and offering personalized guidance for diet, exercise, and mood. It supports natural symptom management for various conditions and empowers users to sync their lives with their cycle phases.

Period and ovulation trackingCycle syncing plannerPersonalized health guidance
💪 Health & Fitness
(14K)
subscription
20
Ovulation&menstrual tracker
Ovulation&menstrual tracker
Ovulation&menstrual tracker
Menstruation calendar app
Free

This application helps women track their menstrual cycles and predict fertile days. It serves as a personal assistant, providing reminders for cycle changes and related events to support women's health management.

Menstrual cycle trackingFertility period predictionCycle change reminders
💪 Health & Fitness
(16)
freemium

FAQ about Ovulation Calculator App

What is the best ovulation calculator app for iPhone?
Ovulation Calculator App tops our ovulation calculator app ranking as of June 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Yes — 20 of the top ovulation calculator app we rank are free to download, including Ovulation Calculator App and Clue Period & Cycle Tracker.
Ovulation Calculator App has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 203+ ovulation calculator app on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
To use Ovulation Calculator, simply input the date of your last period and the length of your cycle into the designated fields. Press the calculate button, and the app will provide your fertility window.
Ovulation Calculator requires two key pieces of information: the date of your last menstrual period and the typical length of your menstrual cycle. This data is used to perform the calculations.