Best Peakday Fertility Tracker App

216+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated May 2026

From beginner-friendly picks to power-user tools, our peakday fertility tracker app list covers 216+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Peakday Fertility Tracker App

Natural Cycles Fertility App#2

Natural Cycles Fertility App by NaturalCycles Nordic AB

Decode your hormonal health
Strong Contender
💪 Health & Fitness
4.7😊(3.1K 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

A highly effective FDA-cleared contraception app that tracks ovulation based on body temperature, offering hormone-free birth control and personalized fertility insights. It adapts to irregular cycles, provides daily fertility status, and supports natural family planning. Sign up for a subscription for a free thermometer and precise cycle monitoring.

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
Flo Cycle & Period Tracker#3

Flo Cycle & Period Tracker by FLO HEALTH UK LIMITED

Ovulation & Pregnancy Calendar
Worth Considering
💪 Health & Fitness
4.8😐(1.9M ratings)
FreeAdsIn-App Purchases
#3in Health & Fitness
Flo Cycle & Period Tracker screenshot 1
Flo Cycle & Period Tracker screenshot 2
Flo Cycle & Period Tracker screenshot 3
Flo Cycle & Period Tracker screenshot 4
Flo Cycle & Period Tracker screenshot 5
Flo Cycle & Period Tracker screenshot 6

This application helps users track their menstrual cycle, ovulation, and fertility windows. It offers personalized insights, health tips, and a community forum for support. Download now to stay informed and empowered in managing your reproductive health.

What We Love

  • 🚀 Accurate period predictions
  • 📊 Helpful insights and information
  • 🤝 Supportive community
  • 🗓️ Useful tracking features

Room to Improve

  • 💰 Excessive push for premium subscription
  • 🔒 Privacy concerns around data sharing
  • 🤖 Lack of inclusivity for non-binary users

More Peakday Fertility Tracker App apps to explore

4
Clue Period & Cycle Tracker
Clue Period & Cycle Tracker
Clue Period & Cycle Tracker
Ovulation & Fertility Calendar
Free

Track menstrual cycle, ovulation, symptoms, and fertility windows with this all-in-one period tracker. Stay informed about your reproductive health and get personalized insights to manage your menstrual health better. Download now to take charge of your cycle!

💪 Health & Fitness
(396K)
5
Femometer Fertility Tracker
Femometer Fertility Tracker
Femometer Fertility Tracker
Ovulation & Period Calendar
Free

Track your cycle and monitor fertility effortlessly with this intuitive app. Stay informed about ovulation periods, track your menstrual cycle, and receive personalized predictions. Start optimizing your chances of conception today.

💪 Health & Fitness
(70K)
6
Glow Eve Period Tracker
Glow Eve Period Tracker
Glow Eve Period Tracker
Ovulation & Flow App
Free

Keep track of your menstrual cycle and fertility window with our user-friendly period tracking app. Monitor symptoms, predict ovulation, and stay informed about your reproductive health. Download now to take control of your cycle.

💪 Health & Fitness
(114K)
7
Stardust Period Tracker
Stardust Period Tracker
Stardust Period Tracker
Track your period & cycle
Free

Discover the stars with our celestial app that helps you track and observe the night sky. Point your phone towards the heavens to identify stars, planets, and constellations in real-time, making stargazing an interactive experience. Start exploring the cosmos today by downloading the app!

💪 Health & Fitness
(104K)
8
Premom Ovulation Tracker & BBT
Premom Ovulation Tracker & BBT
Premom Ovulation Tracker & BBT
Period, Fertility & Pregnancy
Free

Track your menstrual cycle, predict ovulation, and monitor fertility signs with this comprehensive app designed to help you plan or prevent pregnancy. Stay on top of your reproductive health easily and accurately.

💪 Health & Fitness
(56K)
9
iPeriod Period Tracker +
iPeriod Period Tracker +
iPeriod Period Tracker +
Period & Cycle Tracker
$1.99

This women's health journal app offers comprehensive tracking of menstrual cycles, symptoms, weight, and more, with features like period prediction and fertility tracking. It also provides customization, automatic backup, data syncing, and premium subscription options for advanced features like charting and BBT analysis. Download now to better understand your body and track your health with ease.

💪 Health & Fitness
(2.7K)
10
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Period • Fertility Test Reader
Free

Track your fertility and menstrual cycle with ease using our innovative ovulation tracker. Stay informed about your most fertile days and optimize your chances of conception. Download now for a comprehensive approach to family planning.

💪 Health & Fitness
(11K)
11
Couple Joy - Relationship App
Couple Joy - Relationship App
Couple Joy - Relationship App
Long Distance & Love Tracker
Free

Connect with your partner through daily prompts, shared activities, and special moments to strengthen your relationship. Enjoy personalized suggestions to spark conversations and create meaningful memories together. Download now to bring more joy and intimacy into your relationship!

🌟 Lifestyle
(31K)
12
Spot On Period Tracker
Spot On Period Tracker
Spot On Period Tracker
Birth Control & Cycle Calendar
Free

Track and manage your menstrual cycle with precision using this intuitive application. Stay informed about your fertility window, symptoms, and period predictions easily. Download now for a hassle-free period tracking experience.

💪 Health & Fitness
(15K)
13
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 all in one place with the most comprehensive app of its kind. Get personalized insights, connect with a supportive community, and improve your chances of getting pregnant. Join millions of women who trust this app - start your journey to motherhood today! Download now.

💪 Health & Fitness
(74K)
14
Period Tracker - Menstrual & Ovulation Calendar
Period Tracker - Menstrual & Ovulation Calendar
Period Tracker - Menstrual & Ovulation Calendar
by BHI Technologies, Inc.
Free

Track your menstrual cycle, ovulation, symptoms, and moods with this app. Receive personalized predictions and insights to better understand and manage your period. Download now to take control of your cycle!

💪 Health & Fitness
(269)
15
Period Tracker ·
Period Tracker ·
Period Tracker ·
Ovulation & Fertility App
Free

Track your menstrual cycle, ovulation, and fertility with this app. Stay informed about your reproductive health and take control of your well-being.

💪 Health & Fitness
(3.6K)
16
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Ovulation Cycle & Fertile Days
Free

An advanced ovulation and period tracking app that helps you determine fertile days, track fertility signs, and offers personalized insights, tips, and analysis to aid conception. Enhance your fertility awareness and track your journey seamlessly with this comprehensive fertility friend app.

💪 Health & Fitness
(7.3K)
17
Period Tracker and Calendar
Period Tracker and Calendar
Period Tracker and Calendar
Track your Cycle & Ovulation
Free

Track your menstrual cycle, fertility, and overall health easily with our period tracker app. Stay informed about your body's natural rhythms and take control of your reproductive health today.

💪 Health & Fitness
(53K)
18
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 and ovulation with ease using our comprehensive fertility tracker. Stay informed about your most fertile days and record important data effortlessly. Download now to take control of your reproductive health.

🏥 Medical
(1K)
19
MyFlo® Period Tracker Calendar
MyFlo® Period Tracker Calendar
MyFlo® Period Tracker Calendar
Cycle Syncing® & Ovulation
Free

Track your menstrual cycle, symptoms, moods, and more with this innovative period tracker app. Sync your cycle with lifestyle factors for personalized insights and predictions. Download now for a harmonious cycle experience!

💪 Health & Fitness
(14K)
20
Between, Couples Love Tracker
Between, Couples Love Tracker
Between, Couples Love Tracker
Daily Relationship Tracker
Free

Are you in a relationship? Try Between, an app designed for couples to enhance communication and store memories. Join now to strengthen your connection with your partner!

🌐 Social Networking
(21K)