Best Ovulation Predictor Apps

206+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated July 2026

Every iPhone needs a few good ovulation predictor apps. We benchmark 206+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Ovulation Predictor Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Ovulation Calculator Fertile Tracker & Calendar OCOvulation Calculator Fertile Tracker & Calendar OCFree4.6★ (5.9K)NoNoJul 2026
2Premom-Ovulation Tracker, PCOSPremom-Ovulation Tracker, PCOSFree4.8★ (57K)YesYesJul 2026
3Glow Ovulation & Period AppGlow Ovulation & Period AppFree4.7★ (74K)YesYesJul 2026
4Cycle Tracker & Period: CyclesCycle Tracker & Period: CyclesFree4.7★ (26K)NoYesJul 2026
5Flo Cycle & Period TrackerFlo Cycle & Period TrackerFree4.7★ (1.9M)YesYesJul 2026
6Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (89K)YesNoJul 2026
7Stardust Period TrackerStardust Period TrackerFree4.8★ (111K)YesYesJul 2026
8Femometer Fertility TrackerFemometer Fertility TrackerFree4.9★ (70K)NoYesJul 2026

Top Picks for Ovulation Predictor

4.6😊(5.9K ratings)
Free
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 1
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 2
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 3
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 4
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 5

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.

What We Love

  • 🚀 Accurate predictions
  • 👍 Easy to use
  • 💡 Helpful information and tips
  • 🚀 Reliable tracking

Room to Improve

  • 🐛 Crashes/glitches
  • 🐛 Inaccurate predictions
  • 🐛 Issues logging data
Premom-Ovulation Tracker, PCOS#2

Premom-Ovulation Tracker, PCOS by Easy Healthcare Corporation

Period, Fertility & Pregnancy
Strong Contender
💪 Health & Fitness
4.8😊(57K ratings)
FreeAdsIn-App Purchases
#72in 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
Glow Ovulation & Period App#3

Glow Ovulation & Period App by Glow

FDA Listed Fertility Tracker
Worth Considering
💪 Health & Fitness
4.7😐(74K ratings)
FreeAdsIn-App Purchases
Glow Ovulation & Period App screenshot 1
Glow Ovulation & Period App screenshot 2
Glow Ovulation & Period App screenshot 3
Glow Ovulation & Period App screenshot 4
Glow Ovulation & Period App screenshot 5
Glow Ovulation & Period App screenshot 6

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.

What We Love

  • 🚀 Accurate period and ovulation tracking
  • 👍 Helpful community and support
  • 📊 Detailed cycle analysis and insights
  • 🤰 Useful for trying to conceive

Room to Improve

  • 💬 Overwhelming community with rude/toxic comments
  • 📢 Excessive ads and push for premium subscription
  • 🤯 Cluttered and confusing UI after updates

More Ovulation Predictor apps to explore

4
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
5
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
6
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
7
Stardust Period Tracker
Stardust Period Tracker
Stardust Period Tracker
Track your period & cycle
Free

This health app helps you understand and track your menstrual cycle, ovulation, and pregnancy. It combines scientific data with ancient wisdom and astronomy to provide personalized insights and goal manifestation tools. Features include period predictions, symptom tracking, and lunar synchronicity.

Period and ovulation predictionPregnancy tracking with ARDaily personalized insights
💪 Health & Fitness
(111K)
free with in-app purchases
8
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
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 & 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
11
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
12
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
13
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Período Fértil e Ciclo
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
14
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
15
Period Tracker ⋆
Period Tracker ⋆
Period Tracker ⋆
Period and Ovulation Tracker
Free

This app helps you track your menstrual cycle, predict periods, and monitor ovulation. Log symptoms, moods, and intimate life for personalized insights and receive timely reminders. It offers customizable tracking for irregular cycles and provides fertility period notifications.

Cycle and menstruation forecastingMenses date trackingCustomizable cycle length
💪 Health & Fitness
(23K)
subscription
16
Clue Period & Cycle Tracker
Clue Period & Cycle Tracker
Clue Period & Cycle Tracker
Ovulation & Fertility Calendar
Free

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.

Personalized period predictionsTrack 100+ cycle-related experiencesFertility and ovulation calculator
💪 Health & Fitness
(399K)
free with in-app purchases
17
Maybe Baby™ Fertility Tracker
Maybe Baby™ Fertility Tracker
Maybe Baby™ Fertility Tracker
Period and Ovulation Calendar
$4.99
$9.99 | 50% OFF

Track your menstrual cycle, predict ovulation, and identify fertile windows. This app offers insights into potential pregnancy and even suggests the likely gender of your baby. It supports multiple languages and is updated regularly.

Period trackingOvulation predictionFertile window identification
🏥 Medical
(1K)
free with in-app purchases
18
FEMM Period Ovulation Tracker
FEMM Period Ovulation Tracker
FEMM Period Ovulation Tracker
Health, Period & Ovulation
Free

This app helps women track their menstrual cycles, symptoms, and fertility. It offers insights into hormonal health and connects users with healthcare professionals for personalized care and education.

Cycle and period trackingSymptom logging (physical & emotional)Daily data input reminders
💪 Health & Fitness
(4.1K)
free
19
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
20
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

FAQ about Ovulation Predictor

What are the best ovulation predictor apps for iPhone?
Ovulation Calculator Fertile Tracker & Calendar OC tops our ovulation predictor apps ranking as of July 2026, with a 4.6-star average from 5.9K App Store ratings, and it's free to download.
Yes — 19 of the top ovulation predictor apps we rank are free to download, including Ovulation Calculator Fertile Tracker & Calendar OC and Premom-Ovulation Tracker, PCOS.
Ovulation Calculator Fertile Tracker & Calendar OC has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 206+ ovulation predictor apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
The app helps users identify their most fertile days by analyzing their unique menstrual cycle, health, and lifestyle data. It aims to increase the chances of conception by providing accurate predictions and insights into fertility.
Key features include cycle data analysis for predictions, an ovulation calculator, a fertile window viewer, fertility charting, daily insights, a fertility knowledge portal, and access to an online support network for users trying to conceive.

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