Best Fertility Tracker Apple Watch Apps

212+ iOS apps curated and reviewed

4.7 avg rating
18 free apps
Updated July 2026

Natural Cycles Fertility App is the household name in fertility tracker apple watch, but it's far from the only option. We track 212+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Fertility Tracker Apple Watch Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Natural Cycles Fertility AppNatural Cycles Fertility AppFree4.8★ (30K)YesYesJul 2026
2Femometer Fertility TrackerFemometer Fertility TrackerFree4.9★ (70K)NoYesJul 2026
3Cycle Tracker & Period: CyclesCycle Tracker & Period: CyclesFree4.7★ (26K)NoYesJul 2026
4Clue Period & Cycle TrackerClue Period & Cycle TrackerFree4.8★ (399K)YesYesJul 2026
5Трекер Периодов Мой КалендарьТрекер Периодов Мой КалендарьFree4.9★ (171K)YesYesJul 2026
6Maybe Baby™ Fertility TrackerMaybe Baby™ Fertility Tracker$4.99 was $9.994.7★ (1K)NoYesJul 2026
7Овуляция Tracker - PremomОвуляция Tracker - PremomFree4.8★ (58K)NoYesJul 2026
8Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (89K)YesNoJul 2026

Top Picks for Fertility Tracker Apple Watch

Natural Cycles Fertility App#1

Natural Cycles Fertility App by NaturalCycles Nordic AB

Decode your hormonal health
Editor's Choice
💪 Health & Fitness
4.8😊(29K ratings)
FreeAdsIn-App Purchases
#32in Health & Fitness
Natural Cycles Fertility App screenshot 1
Natural Cycles Fertility App screenshot 2
Natural Cycles Fertility App screenshot 3
Natural Cycles Fertility App screenshot 4
Natural Cycles Fertility App screenshot 5
Natural Cycles Fertility App screenshot 6

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.

What We Love

  • 👍 Teaches users about their cycle
  • 👍 Helps users understand their body
  • 👍 Provides a natural contraceptive option
  • 👍 Accurate in predicting ovulation and periods

Room to Improve

  • 🐛 Inconsistent in predicting ovulation and periods for some users
  • 🐛 Thermometer issues (loud, hard to read, no Bluetooth connectivity)
  • 🐛 Difficult to use for users with irregular cycles or disrupted sleep schedules
Femometer Fertility Tracker#2

Femometer Fertility Tracker by BONGMI LIMITED

Ovulation & Period Calendar
Strong Contender
💪 Health & Fitness
4.9😊(70K ratings)
FreeIn-App Purchases
Femometer Fertility Tracker screenshot 1
Femometer Fertility Tracker screenshot 2
Femometer Fertility Tracker screenshot 3
Femometer Fertility Tracker screenshot 4
Femometer Fertility Tracker screenshot 5
Femometer Fertility Tracker screenshot 6

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.

What We Love

  • 🚀 Reliable and accurate predictions
  • 👍 Customizable and helpful features
  • 💡 Intelligent LH test recognition
  • 👍 Great for tracking cycles and ovulation

Room to Improve

  • 🐛 Syncing and connectivity issues
  • 🔍 Limited fertility factor tracking
  • 💬 Overwhelming community discussions
Cycle Tracker & Period: Cycles#3

Cycle Tracker & Period: Cycles by Perigee AB

Fertility & Ovulation App
Worth Considering
💪 Health & Fitness
4.7😊(26K ratings)
FreeIn-App Purchases
Cycle Tracker & Period: Cycles screenshot 1
Cycle Tracker & Period: Cycles screenshot 2
Cycle Tracker & Period: Cycles screenshot 3
Cycle Tracker & Period: Cycles screenshot 4
Cycle Tracker & Period: Cycles screenshot 5
Cycle Tracker & Period: Cycles screenshot 6

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.

What We Love

  • 🚀 Easy to use
  • 📆 Accurate cycle tracking
  • 🤝 Ability to share with partner
  • 🗓️ Helpful for planning pregnancy

Room to Improve

  • 🐛 Issues with data persistence and syncing
  • 🔧 Confusing interface for editing cycle details
  • 💰 Paid features should be free

More Fertility Tracker Apple Watch apps to explore

4
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
5
Трекер Периодов Мой Календарь
Трекер Периодов Мой Календарь
Трекер Периодов Мой Календарь
Трекер Овуляций и Менструаций
Free

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.

Period and ovulation predictionFertility trackingPregnancy mode with week-by-week growth
💪 Health & Fitness
(171K)
free with in-app purchases
6
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
7
Овуляция Tracker - Premom
Овуляция Tracker - Premom
Овуляция Tracker - Premom
Беременность & менструация
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
(58K)
free with in-app purchases
8
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
9
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
10
Life - Period Tracker Calendar
Life - Period Tracker Calendar
Life - Period Tracker Calendar
My menstrual ovulation cycle
Free

Track your menstrual cycle, predict ovulation, and log symptoms, moods, and health data. Offers extensive customization and privacy protection, with optional premium features for deeper health insights and sharing.

Period trackingOvulation predictionCycle reminders
💪 Health & Fitness
(63K)
freemium
11
Period Tracker ‎
Period Tracker ‎
Period Tracker ‎
Menstrual Cycle Tracker
Free

This app helps you discreetly track your menstrual cycle, daily moods, health symptoms, and more. It offers predictions for your period and fertile days, allowing for better planning. Customize your experience with various themes and icons, and connect with a community for support.

Track periods, moods, symptoms, and weightPredict upcoming periods and fertile daysCustomizable themes, fonts, and icons
💪 Health & Fitness
(8.2K)
free with in-app purchases
12
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
13
Modern Fertility Tracker
Modern Fertility Tracker
Modern Fertility Tracker
Premom fertility tracker date
Free

Easily track your menstrual cycle, predict your next period, and identify your fertile window. Log symptoms, moods, and receive discreet reminders for ovulation and more. Gain insights into your reproductive health with daily articles and tips.

Period trackingFertility window predictionOvulation day identification
💪 Health & Fitness
(79)
free with in-app purchases
14
Period Tracker by GP Apps
Period Tracker by GP Apps
Period Tracker by GP Apps
Women’s Health Diary
Free

Easily track your menstrual cycles, predict future periods, and monitor fertility. Log symptoms, moods, and weight with detailed charts and customizable notes. Includes advanced modes for trying to conceive and pregnancy tracking, with privacy features and data backup.

Period cycle tracking and predictionFertility and ovulation trackingSymptom and mood logging
💪 Health & Fitness
(74K)
freemium
15
iPeriod Period Tracker +
iPeriod Period Tracker +
iPeriod Period Tracker +
Period & Cycle Tracker
$1.99

This app helps women track their menstrual cycles, fertility, and ovulation. It offers personalized insights, smart notifications, and a discreet interface, prioritizing user privacy. It also integrates with Apple Health for a comprehensive wellness overview.

Period and cycle trackingFertility and ovulation predictionsSymptom and mood logging
💪 Health & Fitness
(2.7K)
subscription
16
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
17
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
(2.5K)
free
18
Period Tracker. Cycle Calendar
Period Tracker. Cycle Calendar
Period Tracker. Cycle Calendar
Ovulation / Fertility Diary
Free

This app helps you track your menstrual cycle, predict your period, and identify ovulation and fertile windows. It also reminds you to take contraceptive pills. Useful for both family planning and contraception management.

Menstrual cycle trackingPeriod predictionOvulation and fertile window calculation
🏥 Medical
(557)
free with in-app purchases
19
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
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 Fertility Tracker Apple Watch

What are the best fertility tracker apple watch apps for iPhone?
Natural Cycles Fertility App tops our fertility tracker apple watch apps ranking as of July 2026, with a 4.8-star average from 30K App Store ratings, and it's free to download.
Yes — 18 of the top fertility tracker apple watch apps we rank are free to download, including Natural Cycles Fertility App and Femometer Fertility Tracker.
Natural Cycles Fertility App shows ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 212+ fertility tracker apple watch apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
The app uses your body temperature to track ovulation, helping you identify fertile days for preventing or planning pregnancy. It offers a hormone-free contraception method and provides insights into different stages of your reproductive health, including postpartum and perimenopause.
The app is scientifically proven to be 93% effective with typical use and 98% effective with perfect use. It's important to note that no birth control method is 100% effective, and it does not protect against STIs.