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
4.8😊(29K ratings)
FreeAdsIn-App Purchases
#27in 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

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
#4in 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 app helps women track their menstrual cycles, ovulation, and fertility. It offers personalized insights, pregnancy support, and tools for managing perimenopause symptoms, with a focus on data privacy and security.

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

This app helps women and people with cycles understand their bodies through period tracking, fertility predictions, and health insights. It offers personalized forecasts, tracks over 100 experiences, and provides science-based content. Connect wearables for advanced health analysis.

Personalized period predictionsTrack 100+ cycle-related experiencesFertility and ovulation calculator
💪 Health & Fitness
(398K)
free with in-app purchases
5
Femometer Fertility Tracker
Femometer Fertility Tracker
Femometer Fertility Tracker
Ovulation & Period Calendar
Free

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.

Period and PMS trackingOvulation and fertile window predictionBasal Body Temperature (BBT) charting
💪 Health & Fitness
(70K)
free with in-app purchases
6
Glow Eve Period Tracker
Glow Eve Period Tracker
Glow Eve Period Tracker
Ovulation & Flow App
Free

This app helps women track their menstrual cycles, predict periods and ovulation, and log moods and symptoms. It offers insights into health trends and a supportive community for discussing sexual health.

Period and ovulation predictionMood and symptom loggingHealth data visualization
💪 Health & Fitness
(114K)
freemium
7
Stardust Period Tracker
Stardust Period Tracker
Stardust Period Tracker
Track your period & cycle
Free

This health app helps you understand and track your menstrual cycle, ovulation, and pregnancy. It combines scientific data with ancient wisdom and astronomy to provide personalized insights and goal manifestation tools. Features include period predictions, symptom tracking, and lunar synchronicity.

Period and ovulation predictionPregnancy tracking with ARDaily personalized insights
💪 Health & Fitness
(108K)
free with in-app purchases
8
Premom-Ovulation Tracker, PCOS
Premom-Ovulation Tracker, PCOS
Premom-Ovulation Tracker, PCOS
Period, Fertility & Pregnancy
Free

This app helps women track their menstrual cycles, predict ovulation, and monitor fertility to increase chances of conception. It offers personalized insights, expert guidance, and tools like BBT charting and ovulation test scanning. Users can also track pregnancy progress and connect with a supportive community.

Ovulation test scanning and LH level quantificationAutomatic BBT thermometer syncing and chartingPeriod and cycle logging with symptom tracking
💪 Health & Fitness
(57K)
free with in-app purchases
9
iPeriod Period Tracker +
iPeriod Period Tracker +
iPeriod Period Tracker +
Period & Cycle Tracker
$1.99

This app helps women track their menstrual cycles, fertility, and ovulation. It offers personalized insights, smart notifications, and a discreet interface, prioritizing user privacy. It also integrates with Apple Health for a comprehensive wellness overview.

Period and cycle trackingFertility and ovulation predictionsSymptom and mood logging
💪 Health & Fitness
(2.7K)
subscription
10
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Period • Fertility Test Reader
Free

Easily track ovulation, predict fertile days, and understand your cycle. Scan test strips with your phone's camera for automatic analysis. Get personalized insights and reminders to maximize your chances of conception.

Accurate ovulation predictionsTest strip reader with auto-detectionPersonalized fertility window tracking
💪 Health & Fitness
(12K)
free with in-app purchases
11
Couple Joy - Relationship App
Couple Joy - Relationship App
Couple Joy - Relationship App
Long Distance & Love Tracker
Free

Strengthen your bond and stay connected with your partner, especially in long-distance relationships. Share your moods, track your distance, play games, and journal your memories together to foster intimacy and grow closer.

Couple widgetsReal-time mood sharingDistance tracking
🌟 Lifestyle
(32K)
free with in-app purchases
12
Spot On Period Tracker
Spot On Period Tracker
Spot On Period Tracker
Birth Control & Cycle Calendar
Free

Easily track your menstrual cycle, predict your period and fertile windows, and manage birth control with discreet reminders. Get support and resources from health experts.

Period and fertility trackingBirth control remindersSymptom logging
💪 Health & Fitness
(15K)
free
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 with personalized insights. Improve your chances of getting pregnant and better understand your body. Connect with a supportive community for advice and shared experiences.

Menstrual cycle trackingOvulation predictionFertility sign tracking
💪 Health & Fitness
(74K)
freemium
14
Period Tracker - Menstrual & Ovulation Calendar
Period Tracker - Menstrual & Ovulation Calendar
Period Tracker - Menstrual & Ovulation Calendar
by BHI Technologies, Inc.
Free

This app helps users track their menstrual cycles, predict fertile and ovulation days, and log symptoms and moods. It offers smart cycle calculations and a pregnancy mode to assist with conception or avoidance. Features include passcode protection, data backup, and elegant design.

Track and predict period, fertile, and ovulation daysLog symptoms and moodsPregnancy mode
💪 Health & Fitness
(269)
free with in-app purchases
15
Period Tracker ·
Period Tracker ·
Period Tracker ·
Ovulation & Fertility App
Free

Track your menstrual cycles, predict symptoms, and understand your fertility window. This app helps you monitor your health, whether you're trying to conceive, avoid pregnancy, or simply gain insight into your body.

Predict PMS, period, and fertility phasesLog symptoms, mood, and habitsTrack menstrual periods
💪 Health & Fitness
(3.6K)
freemium
16
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Ovulation Cycle & Fertile Days
Free

This app helps women track their ovulation and fertile days with advanced charting tools. It provides personalized insights into your cycle, helping you understand your fertility signs and maximize your chances of conception. Millions of women trust it for accurate cycle analysis and pregnancy tracking.

Ovulation detectionFertile window predictionBBT and cervical fluid tracking
💪 Health & Fitness
(7.3K)
freemium
17
Period Tracker and Calendar
Period Tracker and Calendar
Period Tracker and Calendar
Track your Cycle & Ovulation
Free

This app helps users track their menstrual cycle, including ovulation, fertility, and periods. It offers discreet reminders, detailed symptom logging, and personalized insights for better health management and planning. The app also includes features for birth control pill reminders and perimenopause tracking.

Track periods, ovulation, and fertilityLog symptoms, moods, and flowBirth control pill reminders
💪 Health & Fitness
(53K)
free with in-app purchases
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, predict ovulation, and identify fertile windows. This app offers insights into potential pregnancy and even suggests the likely gender of your baby. It supports multiple languages and is updated regularly.

Period trackingOvulation predictionFertile window identification
🏥 Medical
(1K)
free with in-app purchases
19
MyFlo® Period Tracker Calendar
MyFlo® Period Tracker Calendar
MyFlo® Period Tracker Calendar
Cycle Syncing® & Ovulation
Free

This app helps women understand and optimize their hormonal health by tracking menstrual cycles, predicting ovulation, and offering personalized guidance for diet, exercise, and mood. It supports natural symptom management for various conditions and empowers users to sync their lives with their cycle phases.

Period and ovulation trackingCycle syncing plannerPersonalized health guidance
💪 Health & Fitness
(14K)
subscription
20
Between, Couples Love Tracker
Between, Couples Love Tracker
Between, Couples Love Tracker
Daily Relationship Tracker
Free

This app is a private messenger and memory keeper for couples. It allows for romantic conversations, easy storage of photos and videos, and shared scheduling of special dates. It also offers free calls and a PC version for continuous connection.

Private messenger for twoFree emoticons and GIF selfiesPhoto, video, and note storage
🌐 Social Networking
(21K)
free with in-app purchases