Best Fertility Tracker Apple Watch Apps

249+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated October 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 (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Natural Cycles: Fertility AppNatural Cycles: Fertility AppFree4.8★ (30K)YesYesOct 2026
2Femometer Fertility TrackerFemometer Fertility TrackerFree4.9★ (70K)NoYesOct 2026
3Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (90K)NoNoOct 2026
4Glow Ovulation & Period AppGlow Ovulation & Period AppFree4.7★ (75K)YesYesOct 2026
5Glow Eve Period TrackerGlow Eve Period TrackerFree4.7★ (114K)YesYesOct 2026
6Modern Fertility TrackerModern Fertility TrackerFree4.7★ (82)NoYesOct 2026
7Chart35Chart35Free—NoNoAug 2026
8Fleura Period & Health TrackerFleura Period & Health TrackerFree—NoNoOct 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
#25in 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
  • 👍 Empowers users to take control of their fertility
  • 👍 Improves mood and reduces side effects compared to hormonal birth control
  • 👍 Useful for both preventing and planning pregnancy
  • 👍 Detailed data and insights about user's cycle

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
  • 🐛 Lack of customer support responsiveness
  • 🐛 Automatic subscription renewal issues and no refunds
  • 🐛 Algorithm not always accurate, leading to unintended pregnancies
  • 🐛 Cluttered and unintuitive app interface
Femometer Fertility Tracker#2

Femometer Fertility Tracker by Bongmi Global Group

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
  • 💰 Paywall for key features
Ovia Cycle & Pregnancy Tracker#3

Ovia Cycle & Pregnancy Tracker by Ovuline, Inc.

Fertility, Ovulation, & Period
Worth Considering
🏥 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
  • 👍 Informative articles

Room to Improve

  • 🐛 Glitched/not working
  • 🐛 Inaccurate predictions
  • 💡 Need option to track miscarriage
  • 💡 Too pregnancy-focused
  • 🐛 Lost user data

More Fertility Tracker Apple Watch apps to explore

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 October 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 Femometer Fertility Tracker.
Natural Cycles: Fertility App shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ fertility tracker apple watch apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.