Best Fertility Tracker Apple Watch Apps

218+ iOS apps curated and reviewed

4.7 avg rating
17 free apps
Updated June 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
4.8😊(29K ratings)
FreeAdsIn-App Purchases
#27in 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
Clue Period & Cycle Tracker#2

Clue Period & Cycle Tracker by BioWink GmbH

Ovulation & Fertility Calendar
Strong Contender
💪 Health & Fitness
4.8😐(398K ratings)
FreeAdsIn-App Purchases
#38in 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
Femometer Fertility Tracker#3

Femometer Fertility Tracker by BONGMI LIMITED

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

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

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

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
(170K)
free with in-app purchases
5
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
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
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
8
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
9
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
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
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
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
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
14
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
15
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
(73K)
freemium
16
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
17
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
18
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
(2.4K)
free
19
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
20
Period Tracker Deluxe
Period Tracker Deluxe
Period Tracker Deluxe
by GP International LLC
$9.99

Easily track menstrual cycles, predict future periods, and monitor health symptoms. Offers advanced features for trying to conceive and pregnancy, with privacy options and community support.

Period and cycle trackingFertility and ovulation predictionSymptom and mood logging
💪 Health & Fitness
(11K)
free with in-app purchases