Best Fertility Tracker Apple Watch Apps

218+ iOS apps curated and reviewed

4.7 avg rating
17 free apps
Updated May 2026

Natural Cycles Fertility App is the household name in fertility tracker apple watch, but it's far from the only option. We track 218+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

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
4.7😊(3.1K 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

A highly effective FDA-cleared contraception app that tracks ovulation based on body temperature, offering hormone-free birth control and personalized fertility insights. It adapts to irregular cycles, provides daily fertility status, and supports natural family planning. Sign up for a subscription for a free thermometer and precise cycle monitoring.

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
Clue Period & Cycle Tracker#2

Clue Period & Cycle Tracker by BioWink GmbH

Ovulation & Fertility Calendar
Strong Contender
💪 Health & Fitness
4.8😐(396K ratings)
FreeAdsIn-App Purchases
#34in 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

Track menstrual cycle, ovulation, symptoms, and fertility windows with this all-in-one period tracker. Stay informed about your reproductive health and get personalized insights to manage your menstrual health better. Download now to take charge of your cycle!

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
Femometer Fertility Tracker#3

Femometer Fertility Tracker by Bongmi Global Group

Ovulation & Period Calendar
Worth Considering
💪 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

Track your cycle and monitor fertility effortlessly with this intuitive app. Stay informed about ovulation periods, track your menstrual cycle, and receive personalized predictions. Start optimizing your chances of conception today.

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

More Fertility Tracker Apple Watch apps to explore

4
Period Tracker Period Calendar
Period Tracker Period Calendar
Period Tracker Period Calendar
Cycle Tracker & Ovulation
Free

Track your menstrual cycle, ovulation period, and fertility window with this intuitive application. Stay informed about your reproductive health and make informed decisions about your well-being. Download now to take control of your cycle.

💪 Health & Fitness
(169K)
5
Flo Cycle & Period Tracker
Flo Cycle & Period Tracker
Flo Cycle & Period Tracker
Ovulation & Pregnancy Calendar
Free

This application helps users track their menstrual cycle, ovulation, and fertility windows. It offers personalized insights, health tips, and a community forum for support. Download now to stay informed and empowered in managing your reproductive health.

💪 Health & Fitness
(1.9M)
6
Glow Eve Period Tracker
Glow Eve Period Tracker
Glow Eve Period Tracker
Ovulation & Flow App
Free

Keep track of your menstrual cycle and fertility window with our user-friendly period tracking app. Monitor symptoms, predict ovulation, and stay informed about your reproductive health. Download now to take control of your cycle.

💪 Health & Fitness
(114K)
7
Life - Period Tracker Calendar
Life - Period Tracker Calendar
Life - Period Tracker Calendar
My menstrual ovulation cycle
Free

Track your menstrual cycle, ovulation, symptoms, and more with this comprehensive period tracker app. Upgrade to Premium for enhanced health tracking features and enjoy complete privacy without the need for an email address. Download now and take control of your health!

💪 Health & Fitness
(60K)
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 all in one place with the most comprehensive app of its kind. Get personalized insights, connect with a supportive community, and improve your chances of getting pregnant. Join millions of women who trust this app - start your journey to motherhood today! Download now.

💪 Health & Fitness
(74K)
9
Premom Ovulation Tracker & BBT
Premom Ovulation Tracker & BBT
Premom Ovulation Tracker & BBT
Period, Fertility & Pregnancy
Free

Track your menstrual cycle, predict ovulation, and monitor fertility signs with this comprehensive app designed to help you plan or prevent pregnancy. Stay on top of your reproductive health easily and accurately.

💪 Health & Fitness
(56K)
10
Cycles: Period & Cycle Tracker
Cycles: Period & Cycle Tracker
Cycles: Period & Cycle Tracker
Fertility & Ovulation App
Free

A menstrual cycle tracking app that helps users monitor their periods, ovulation, and fertility. Keep tabs on your cycle and reproductive health effortlessly.

💪 Health & Fitness
(3.1K)
11
Period Tracker by GP Apps
Period Tracker by GP Apps
Period Tracker by GP Apps
Women’s Health Diary
Free

Track your menstrual cycle, fertility, and health effortlessly with this intuitive app. Stay informed about your cycle, symptoms, moods, and more with simple tracking features. Join millions of satisfied users and take charge of your health today!

💪 Health & Fitness
(73K)
12
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 and ovulation with ease using our comprehensive fertility tracker. Stay informed about your most fertile days and record important data effortlessly. Download now to take control of your reproductive health.

🏥 Medical
(1K)
13
Kindara: Fertility Tracker
Kindara: Fertility Tracker
Kindara: Fertility Tracker
Ovulation & fertility tracker
Free

Track your menstrual cycle, ovulation, and fertility with our user-friendly app. Stay informed about your reproductive health, record symptoms, and receive personalized insights for better family planning.

🏥 Medical
(9.9K)
14
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Fertility, Ovulation, & Period
Free

Track your fertility, menstrual cycle, and overall health with this comprehensive app. Monitor ovulation, record symptoms, and get personalized insights to help optimize your reproductive health. Download now to take control of your fertility journey.

🏥 Medical
(89K)
15
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Period • Fertility Test Reader
Free

Track your fertility and menstrual cycle with ease using our innovative ovulation tracker. Stay informed about your most fertile days and optimize your chances of conception. Download now for a comprehensive approach to family planning.

💪 Health & Fitness
(11K)
16
Period Tracker ‎
Period Tracker ‎
Period Tracker ‎
Menstrual Cycle Tracker
Free

Track your menstrual cycle, moods, health symptoms, and more discreetly with this stylish period tracking app. Predict periods, fertility days, and sync data to your calendar. Stay organized, plan ahead, and follow your cycle with ease.

💪 Health & Fitness
(8.2K)
17
iPeriod Period Tracker +
iPeriod Period Tracker +
iPeriod Period Tracker +
Period & Cycle Tracker
$1.99

This women's health journal app offers comprehensive tracking of menstrual cycles, symptoms, weight, and more, with features like period prediction and fertility tracking. It also provides customization, automatic backup, data syncing, and premium subscription options for advanced features like charting and BBT analysis. Download now to better understand your body and track your health with ease.

💪 Health & Fitness
(2.7K)
18
Mira Fertility & Cycle Tracker
Mira Fertility & Cycle Tracker
Mira Fertility & Cycle Tracker
Fertility tracking & analysis
Free

A fertility tracking app that uses AI to analyze hormone levels from daily urine tests to predict ovulation with personalized insights for increasing chances of conception. Take control of your fertility journey with precise data and guidance at your fingertips.

💪 Health & Fitness
(2.4K)
19
Period Tracker Deluxe
Period Tracker Deluxe
Period Tracker Deluxe
by GP International LLC
$9.99

Track your menstrual cycle effortlessly with this user-friendly app that predicts your period, ovulation, fertile days, and more. Features include symptom tracking, weight monitoring, mood logging, and even a pregnancy mode with week-by-week articles. Join the millions of satisfied users and take control of your health today! For more information or support, email us at support@gpapps.com.

💪 Health & Fitness
(11K)
20
Modern Fertility Tracker
Modern Fertility Tracker
Modern Fertility Tracker
Premom fertility tracker date
Free
💪 Health & Fitness
(79)