Best Fertility Tracker Apple Watch Apps

249+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated August 2026

Natural Cycles 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)YesYesSep 2026
2Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (90K)NoNoSep 2026
3Glow Ovulation & Period AppGlow Ovulation & Period AppFree4.7★ (75K)YesYesSep 2026
4Femometer Fertility TrackerFemometer Fertility TrackerFree4.9★ (70K)NoYesSep 2026
5Cycles: Period & Cycle TrackerCycles: Period & Cycle TrackerFree4.7★ (27K)NoYesSep 2026
6Modern Fertility TrackerModern Fertility TrackerFree4.7★ (82)NoYesAug 2026
7Glow Eve Period TrackerGlow Eve Period TrackerFree4.7★ (114K)YesYesSep 2026
8Make Babies - The Connected Fertility TrackerMake Babies - The Connected Fertility TrackerFreeNoNoMay 2026

Top Picks for Fertility Tracker Apple Watch

Natural Cycles: Fertility App#1

Natural Cycles: Fertility App by NaturalCycles Nordic AB

Ovulation Tracker・FDA-cleared
Editor's Choice
💪 Health & Fitness
4.8😊(30K ratings)
FreeAdsIn-App Purchases
#38in 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
Ovia Cycle & Pregnancy Tracker#2

Ovia Cycle & Pregnancy Tracker by Ovuline, Inc.

Fertility, Ovulation, & Period
Strong Contender
🏥 Medical
4.8😊(90K ratings)
Free
Ovia Cycle & Pregnancy Tracker screenshot 1
Ovia Cycle & Pregnancy Tracker screenshot 2
Ovia Cycle & Pregnancy Tracker screenshot 3
Ovia Cycle & Pregnancy Tracker screenshot 4
Ovia Cycle & Pregnancy Tracker screenshot 5
Ovia Cycle & Pregnancy Tracker screenshot 6

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.

What We Love

  • 🚀 Excellent app
  • 👍 Comprehensive tracking
  • 💡 Helpful for TTC
  • 👍 Accurate predictions

Room to Improve

  • 🐛 Glitched/not working
  • 🐛 Inaccurate predictions
  • 💡 Need option to track miscarriage
Glow Ovulation & Period App#3

Glow Ovulation & Period App by Glow

FDA Listed Fertility Tracker
Worth Considering
💪 Health & Fitness
4.7😐(75K 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 Fertility Tracker Apple Watch apps to explore

4
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
5
Cycles: Period & Cycle Tracker
Cycles: Period & Cycle Tracker
Cycles: Period & Cycle Tracker
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
6
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
(82)
free with in-app purchases
7
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
8
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)
9
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
10
PeachDay - Period Tracker
PeachDay - Period Tracker
PeachDay - Period Tracker
by MKIT
Free
💪 Health & Fitness
(0)
11
Menstrual Periods Tracker
Menstrual Periods Tracker
Menstrual Periods Tracker
Ovulation Fertility Calculator
Free

Track your menstrual cycle, predict ovulation, and identify fertile days with a scientifically based fertility calculator. It offers insights for natural pregnancy planning or avoidance and integrates with Apple Health for seamless data syncing.

Period and ovulation predictionFertile window identificationBaby gender prediction methods
🏥 Medical
(232)
free with in-app purchases
12
Majella: NFP Fertility Tracker
Majella: NFP Fertility Tracker
Majella: NFP Fertility Tracker
Natural Family Planning
Free
💪 Health & Fitness
(0)
13
Fertily: IVF Tracker
Fertily: IVF Tracker
Fertily: IVF Tracker
Fertility Treatment Companion
Free

This app helps individuals and couples manage their fertility journey, including IVF, IUI, and egg freezing. It organizes treatment details, schedules medications and appointments, and tracks important milestones. Users can maintain a clear treatment history and share summaries.

Track IVF, ICSI, IUI, FET cyclesManage embryo inventorySchedule medications and appointments
💪 Health & Fitness
(1)
free
14
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
(8.3K)
free with in-app purchases
15
Fertility: Period Tracker
Fertility: Period Tracker
Fertility: Period Tracker
Period Tracker: Ovulation
Free
💪 Health & Fitness
(0)
16
Bloom: Period Tracker
Bloom: Period Tracker
Bloom: Period Tracker
Cycle, Pregnancy, Postpartum
Free
💪 Health & Fitness
(0)
17
Period and Ovulation Tracker
Period and Ovulation Tracker
Period and Ovulation Tracker
Cycle & Fertility Calendar
Free

This app helps women track their menstrual cycles, predict ovulation, and manage fertility. It provides notifications for upcoming periods and contraceptive pills, along with a notepad for recording symptoms and early pregnancy signs.

Track menstrual cyclesPredict ovulation and fertility windowsReceive period and pill reminders
💪 Health & Fitness
(3)
subscription
18
Sync - Private Period Tracker
Sync - Private Period Tracker
Sync - Private Period Tracker
In Sync With Your Cycle
Free

A privacy-focused period tracker that stores all your data locally on your device. It offers a simple and ad-free experience for managing your menstrual cycle.

Privacy-focused designLocal data storageAd-free experience
💪 Health & Fitness
(1)
free
19
Cylo - Period & Cycle Tracker
Cylo - Period & Cycle Tracker
Cylo - Period & Cycle Tracker
Track Period & Ovulation
Free

This app helps women track their menstrual cycles, predict ovulation, and manage fertility. It offers personalized insights, discreet reminders, and a secure, private experience. Access educational content to better understand reproductive health.

Period and cycle trackingOvulation and fertility calculatorDaily health and symptom logging
💪 Health & Fitness
(1)
free
20
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

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 — 20 of the top fertility tracker apple watch apps we rank are free to download, including Natural Cycles: Fertility App and Ovia Cycle & Pregnancy Tracker.
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.