Best Free Ovulation Calculator Apps

212+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated May 2026

With an average user rating of 4.6★, the free ovulation calculator category is one of the App Store's strongest. Browse all 212+ apps we track, sorted so the most loved ones surface first.

Top Picks for Free Ovulation Calculator

My Cycle ؜#1

My Cycle ؜ by Aleksei Neiman

Ovulation & Period Tracker
Editor's Choice
💪 Health & Fitness
4.8😊(72K ratings)
Free
My Cycle ؜ screenshot 1
My Cycle ؜ screenshot 2
My Cycle ؜ screenshot 3
My Cycle ؜ screenshot 4

Track your cycle, monitor periods, predict ovulation, and plan for pregnancy with this all-in-one app designed for women's health. Never forget important dates and stay informed about your fertility. Share feedback at neumandev@gmail.com to help us enhance your experience.

What We Love

  • 👍 Easy to use
  • 🚀 Accurate period predictions
  • 💕 Helpful for tracking cycles
  • 🆓 Completely free app

Room to Improve

  • 🐛 Occasional glitches or data loss
  • 🔍 Limited customization options
  • ⚠️ Inaccurate predictions for some users
4.6😊(5.9K ratings)
Free
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 1
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 2
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 3
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 4
Ovulation Calculator Fertile Tracker & Calendar OC screenshot 5

Track your menstrual cycle, predict ovulation days, and stay informed about your fertile window with this app. Take control of your reproductive health and plan ahead with ease. Download now to stay on top of your fertility schedule.

What We Love

  • 🚀 Accurate predictions
  • 👍 Easy to use
  • 💡 Helpful information and tips
  • 🚀 Reliable tracking

Room to Improve

  • 🐛 Crashes/glitches
  • 🐛 Inaccurate predictions
  • 🐛 Issues logging data
Premom Ovulation Tracker & BBT#3

Premom Ovulation Tracker & BBT by Easy Healthcare Corporation

Period, Fertility & Pregnancy
Worth Considering
💪 Health & Fitness
4.8😊(56K ratings)
FreeAdsIn-App Purchases
#71in Health & Fitness
Premom Ovulation Tracker & BBT screenshot 1
Premom Ovulation Tracker & BBT screenshot 2
Premom Ovulation Tracker & BBT screenshot 3
Premom Ovulation Tracker & BBT screenshot 4
Premom Ovulation Tracker & BBT screenshot 5
Premom Ovulation Tracker & BBT screenshot 6

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.

What We Love

  • 🚀 Accurate ovulation tracking
  • 👍 Easy to use app
  • 💡 Helpful community support
  • 🚀 Affordable ovulation tests

Room to Improve

  • 🐛 Inconsistent data tracking
  • 🐛 Frequent app crashes
  • 🐛 Inaccurate ovulation predictions

More Free Ovulation Calculator apps to explore

4
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)
5
Flo Cycle & Period Tracker
Flo Cycle & Period Tracker
Flo Cycle & Period Tracker
Ovulation & Pregnancy Calendar
Free

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.

💪 Health & Fitness
(1.9M)
6
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)
7
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)
8
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Fertility, Ovulation, & Period
Free

Track your fertility, menstrual cycle, and overall health with this comprehensive app. Monitor ovulation, record symptoms, and get personalized insights to help optimize your reproductive health. Download now to take control of your fertility journey.

🏥 Medical
(89K)
9
Natural Cycles Fertility App
Natural Cycles Fertility App
Natural Cycles Fertility App
Decode your hormonal health
Free

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.

💪 Health & Fitness
(3.1K)
10
Period Tracker by GP Apps
Period Tracker by GP Apps
Period Tracker by GP Apps
Women’s Health Diary
Free

Track your menstrual cycle, fertility, and health effortlessly with this intuitive app. Stay informed about your cycle, symptoms, moods, and more with simple tracking features. Join millions of satisfied users and take charge of your health today!

💪 Health & Fitness
(73K)
11
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)
12
Ovulation & Fertility Tracker
Ovulation & Fertility Tracker
Ovulation & Fertility Tracker
Track Menstrual Period & Cycle
Free

Track your menstrual cycle, predict ovulation days, and keep tabs on fertility using this app. Stay informed about your reproductive health easily.

💪 Health & Fitness
(2.7K)
13
Period & Ovulation Calculator
Period & Ovulation Calculator
Period & Ovulation Calculator
Fertility Tracker & Calendar
Free

A cycle tracking app that helps users monitor their menstrual cycles, symptoms, and ovulation patterns. Stay informed and in control of your reproductive health.

💪 Health & Fitness
(480)
14
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)
15
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)
16
Period Tracker Period Calendar
Period Tracker Period Calendar
Period Tracker Period Calendar
Cycle Tracker & Ovulation
Free

Track your menstrual cycle, ovulation period, and fertility window with this intuitive application. Stay informed about your reproductive health and make informed decisions about your well-being. Download now to take control of your cycle.

💪 Health & Fitness
(169K)
17
Cycles: Period & Cycle Tracker
Cycles: Period & Cycle Tracker
Cycles: Period & Cycle Tracker
Fertility & Ovulation App
Free

A menstrual cycle tracking app that helps users monitor their periods, ovulation, and fertility. Keep tabs on your cycle and reproductive health effortlessly.

💪 Health & Fitness
(3.1K)
18
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)
19
Ovulation: Period Calculator
Ovulation: Period Calculator
Ovulation: Period Calculator
Fertility & Pregnancy Calendar
Free
💪 Health & Fitness
(0)
20
Ovulation calculator (cycle)
Ovulation calculator (cycle)
Ovulation calculator (cycle)
( menstrual cycle )
Free
🏥 Medical
(2)