Best Fertility Calendar Apps

248+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated September 2026

The best fertility calendar apps on iPhone average 4.4★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Fertility Calendar Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Period Tracker Period CalendarPeriod Tracker Period CalendarFree4.9★ (173K)YesYesSep 2026
2Glow Ovulation & Period AppGlow Ovulation & Period AppFree4.7★ (75K)YesYesSep 2026
3Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (90K)NoNoSep 2026
4Premom-Ovulation Tracker, PCOSPremom-Ovulation Tracker, PCOSFree4.8★ (59K)NoYesSep 2026
5MaybeBaby fertility& pregnancy monthly calendarMaybeBaby fertility& pregnancy monthly calendarFree1.0★ (1)NoYesAug 2026
6BabySteps CalendarBabySteps CalendarFreeNoYesMay 2026
7Period and Ovulation TrackerPeriod and Ovulation TrackerFree5.0★ (3)NoYesSep 2026
8Menstrual Calendar FMCMenstrual Calendar FMCFree4.6★ (193)NoNoAug 2026

Top Picks for Fertility Calendar

Period Tracker Period Calendar#1

Period Tracker Period Calendar by ABISHKKING LIMITED.

Cycle Tracker & Ovulation
Editor's Choice
💪 Health & Fitness
4.9😊(173K ratings)
FreeAdsIn-App Purchases
#38in Health & Fitness
Period Tracker Period Calendar screenshot 1
Period Tracker Period Calendar screenshot 2
Period Tracker Period Calendar screenshot 3
Period Tracker Period Calendar screenshot 4
Period Tracker Period Calendar screenshot 5
Period Tracker Period Calendar screenshot 6

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.

What We Love

  • ⭐ Accurate period tracking
  • 📆 Helpful calendar and diary features
  • 🌟 Customizable themes and pets
  • 🔍 Comprehensive symptom and health tracking
  • 🗓️ Reliable period and ovulation predictions
  • 💻 Seamless cross-device sync and backup
  • 🧠 Useful educational content and tips
  • 🤰 Pregnancy and fertility tracking

Room to Improve

  • 🔍 Unclear symptom definitions
  • 🔔 Intrusive and unskippable ads
  • 🔒 Concerns about data privacy and security
  • 🔢 Inaccurate period and ovulation predictions
  • 🔀 Difficulty in adjusting past cycle data
  • 🔍 Limited customization options
Glow Ovulation & Period App#2

Glow Ovulation & Period App by Glow

FDA Listed Fertility Tracker
Strong Contender
💪 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
  • 🔍 Convenient OPK strip scanning

Room to Improve

  • 💬 Overwhelming community with rude/toxic comments
  • 📢 Excessive ads and push for premium subscription
  • 🤯 Cluttered and confusing UI after updates
  • 🕰️ Slow performance and syncing issues
  • 🔍 Inaccurate ovulation predictions
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 Calendar apps to explore

FAQ about Fertility Calendar

What are the best fertility calendar apps for iPhone?
Period Tracker Period Calendar tops our fertility calendar apps ranking as of September 2026, with a 4.9-star average from 173K App Store ratings, and it's free to download.
Yes — 20 of the top fertility calendar apps we rank are free to download, including Period Tracker Period Calendar and Glow Ovulation & Period App.
Period Tracker Period Calendar shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 248+ fertility calendar apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app functions as a comprehensive tracker for menstrual cycles, ovulation, and pregnancy. It provides accurate predictions for period start and end dates, helps identify fertile windows, and offers week-by-week pregnancy development tracking. It also includes reminders for birth control and medications, symptom logging, and personalized health advice.
The app prioritizes user privacy by not requiring an account and keeping all data 100% on the user's device. Data is never uploaded or shared with third parties. Users can delete all their data with a single tap, ensuring full privacy protection.