Best Ovulation Calculator Apps

248+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated September 2026

Out of 248+ ovulation calculator apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Ovulation Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Period & Ovulation CalculatorPeriod & Ovulation CalculatorFree4.4★ (611)YesYesSep 2026
2Ovulation Calculator Fertile Tracker & Calendar OCOvulation Calculator Fertile Tracker & Calendar OCFree4.6★ (5.9K)NoNoSep 2026
3Ovulation Tracker & CalculatorOvulation Tracker & CalculatorFree4.4★ (5)YesYesAug 2026
4Period Tracker Period CalendarPeriod Tracker Period CalendarFree4.9★ (173K)YesYesSep 2026
5Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (90K)NoNoSep 2026
6Ovulation Calculator AppOvulation Calculator AppFree5.0★ (1)NoNoMay 2026
7Ovulation: Period CalculatorOvulation: Period CalculatorFreeYesYesJul 2026
8Glow Ovulation & Period AppGlow Ovulation & Period AppFree4.7★ (75K)YesYesSep 2026

Top Picks for Ovulation Calculator

Period & Ovulation Calculator#1

Period & Ovulation Calculator by AESTHETIC WIDGETS LTD

Fertility Tracker & Calendar
Editor's Choice
💪 Health & Fitness
4.4(611 ratings)
FreeAdsIn-App Purchases
Period & Ovulation Calculator screenshot 1
Period & Ovulation Calculator screenshot 2
Period & Ovulation Calculator screenshot 3
Period & Ovulation Calculator screenshot 4
Period & Ovulation Calculator screenshot 5
Period & Ovulation Calculator screenshot 6

This app helps users track their menstrual cycles, predict ovulation dates, and identify fertile windows. It also assists in calculating pregnancy test dates and expected labor dates, offering a comprehensive tool for family planning and fertility awareness.

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

This app helps users identify their most fertile days to increase the chances of conception. It analyzes personal cycle data, offers fertility knowledge, and provides access to a supportive community.

What We Love

  • 🚀 Accurate predictions
  • 👍 Easy to use
  • 💡 Helpful information and tips
  • 🚀 Reliable tracking
  • 👍 Informative
  • 🚀 Worked first try
  • 👍 Comprehensive
  • 👍 Detailed
  • 🚀 Helped get pregnant
  • 👍 Great resource

Room to Improve

  • 🐛 Crashes/glitches
  • 🐛 Inaccurate predictions
  • 🐛 Issues logging data
  • 🐛 Difficult to edit information
  • 🐛 Compatibility issues
Ovulation Tracker & Calculator#3

Ovulation Tracker & Calculator by ESPRESSO TECH (SMC-PRIVATE) LIMITED

Period Calendar & Menstrual
Worth Considering
💪 Health & Fitness
4.4(5 ratings)
FreeAdsIn-App Purchases
Ovulation Tracker & Calculator screenshot 1
Ovulation Tracker & Calculator screenshot 2
Ovulation Tracker & Calculator screenshot 3
Ovulation Tracker & Calculator screenshot 4
Ovulation Tracker & Calculator screenshot 5
Ovulation Tracker & Calculator screenshot 6

This app helps users track their menstrual cycles, predict ovulation, and identify fertile days to increase the chances of conception. It offers features like period tracking, symptom logging, and cycle length analysis for a better understanding of reproductive health.

More Ovulation Calculator apps to explore

FAQ about Ovulation Calculator

What are the best ovulation calculator apps for iPhone?
Period & Ovulation Calculator tops our ovulation calculator apps ranking as of September 2026, with a 4.4-star average from 611 App Store ratings, and it's free to download.
Yes — 20 of the top ovulation calculator apps we rank are free to download, including Period & Ovulation Calculator and Ovulation Calculator Fertile Tracker & Calendar OC.
Period & Ovulation Calculator shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 248+ ovulation calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app functions as an ovulation tracker, fertility tracker, and period calendar. It helps users predict their next period date, ovulation date, fertile window, pregnancy test date, safe days, and expected labor date. It's designed to provide general guidance for family planning and fertility awareness.
Key features include tracking period dates, predicting ovulation dates, identifying fertile days, calculating pregnancy test dates, and estimating expected labor dates. The app also offers a user-friendly interface and pin lock protection for privacy.

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