Best Fertility Tracker Apple Watch Apps

249+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated August 2026

Natural Cycles Fertility App is the household name in fertility tracker apple watch, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Fertility Tracker Apple Watch Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Natural Cycles Fertility AppNatural Cycles Fertility AppFree4.8★ (30K)YesYesAug 2026
2Glow Ovulation & Period AppGlow Ovulation & Period AppFree4.7★ (74K)YesYesAug 2026
3Femometer Fertility TrackerFemometer Fertility TrackerFree4.9★ (70K)NoYesAug 2026
4Cycle Tracker & Period: CyclesCycle Tracker & Period: CyclesFree4.7★ (27K)NoYesAug 2026
5Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (90K)NoNoAug 2026
6Premom-Ovulation Tracker, PCOSPremom-Ovulation Tracker, PCOSFree4.8★ (58K)NoYesAug 2026
7Period Tracker ‎Period Tracker ‎Free4.6★ (8.2K)YesYesAug 2026
8Modern Fertility TrackerModern Fertility TrackerFree4.7★ (79)YesYesJul 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😊(30K 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
Glow Ovulation & Period App#2

Glow Ovulation & Period App by Glow

FDA Listed Fertility Tracker
Strong Contender
💪 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
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

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
Cycle Tracker & Period: Cycles
Cycle Tracker & Period: Cycles
Cycle Tracker & Period: Cycles
Fertility & Ovulation Calendar
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
(27K)
freemium
5
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
(90K)
free with in-app purchases
6
Premom-Ovulation Tracker, PCOS
Premom-Ovulation Tracker, PCOS
Premom-Ovulation Tracker, PCOS
Fertility, Period & 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
(58K)
free with in-app purchases
7
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
8
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
9
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
10
Make Babies - The Connected Fertility Tracker
Make Babies - The Connected Fertility Tracker
Make Babies - The Connected Fertility Tracker
by Big Feet Productions Ltd
Free
💪 Health & Fitness
(0)
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
Menstrual Cycle Tracker
Menstrual Cycle Tracker
Menstrual Cycle Tracker
Ovulation Fertility Calculator
Free

This app helps you understand your menstrual cycle and fertility window. It predicts your period, ovulation, and fertile days using scientifically backed methods. Syncs with Apple Health for seamless data management.

Period predictionOvulation day calculationFertile window identification
🏥 Medical
(2.6K)
free with in-app purchases
13
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
14
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
15
Ovify: A Private Cycle Tracker
Ovify: A Private Cycle Tracker
Ovify: A Private Cycle Tracker
Period, BBT and AI. On-device.
Free
💪 Health & Fitness
(0)
16
Oura
Oura
Oura
by Oura Health Oy
Free

This smart ring and companion app provide daily health insights and personalized recommendations based on your body's biometrics. Track sleep, activity, and readiness with actionable guidance to improve overall wellness and understand your body's signals.

Daily Sleep, Activity, and Readiness scoresAccurate biometric tracking (heart rate, temp, SpO2)In-depth sleep analysis and optimization tips
💪 Health & Fitness
(278K)
free
17
My Fertility Tracker
My Fertility Tracker
My Fertility Tracker
by 晓雯 谢
$0.99
💪 Health & Fitness
(0)
18
Majella: NFP Fertility Tracker
Majella: NFP Fertility Tracker
Majella: NFP Fertility Tracker
Natural Family Planning
Free
💪 Health & Fitness
(0)
19
Lu Period Tracker, Ovulation
Lu Period Tracker, Ovulation
Lu Period Tracker, Ovulation
My Menstrual Cycle Calendar
Free

Track your menstrual cycle and monitor your health with accurate predictions for your period. Record symptoms and cycle details to gain a comprehensive overview of your well-being and receive timely reminders. Access information quickly via widgets and Apple Watch, with secure data protection.

Menstrual cycle trackingPeriod and ovulation predictionsSymptom logging
💪 Health & Fitness
(69)
free with in-app purchases
20
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
(566)
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 August 2026, with a 4.8-star average from 30K App Store ratings, and it's free to download.
Yes — 19 of the top fertility tracker apple watch apps we rank are free to download, including Natural Cycles Fertility App and Glow Ovulation & Period App.
Natural Cycles Fertility App shows ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ fertility tracker apple watch apps on the iOS App Store as of August 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.