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Best Basal Body Temperature Tracker Apps

224+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated May 2026

Finding the right basal body temperature tracker app can be overwhelming with so many options. We've analyzed 224+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Basal Body Temperature Tracker

Femometer Fertility Tracker#1

Femometer Fertility Tracker by Bongmi Global Group

Ovulation & Period Calendar
Editor's Choice
💪 Health & Fitness
4.9😊(70K ratings)
FreeIn-App Purchases
Femometer Fertility Tracker screenshot 1
Femometer Fertility Tracker screenshot 2
Femometer Fertility Tracker screenshot 3
Femometer Fertility Tracker screenshot 4
Femometer Fertility Tracker screenshot 5
Femometer Fertility Tracker screenshot 6

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.

What We Love

  • 🚀 Reliable and accurate predictions
  • 👍 Customizable and helpful features
  • 💡 Intelligent LH test recognition
  • 👍 Great for tracking cycles and ovulation

Room to Improve

  • 🐛 Syncing and connectivity issues
  • 🔍 Limited fertility factor tracking
  • 💬 Overwhelming community discussions
Body Temperature App For Fever#2

Body Temperature App For Fever by AboutMe Apps, Inc.

Thermometer. Checker. Tracker
Strong Contender
🏥 Medical
4.7😞(22K ratings)
FreeIn-App Purchases
#14in Medical
Body Temperature App For Fever screenshot 1
Body Temperature App For Fever screenshot 2
Body Temperature App For Fever screenshot 3
Body Temperature App For Fever screenshot 4
Body Temperature App For Fever screenshot 5
Body Temperature App For Fever screenshot 6

Track, log, and monitor your body temperature, symptoms, and medications with ease using this app. Stay proactive about your health by keeping an eye on your well-being and sharing your data with healthcare professionals. Download now for free!

What We Love

  • ⭐ Accurate temperature readings
  • 📊 Helpful for tracking health symptoms
  • 🔍 Useful when no thermometer is available

Room to Improve

  • 💰 Subscription-based model
  • 🤔 Misleading claims about temperature measurement
  • 🤖 Inaccurate temperature estimates
Natural Cycles Fertility App#3

Natural Cycles Fertility App by NaturalCycles Nordic AB

Decode your hormonal health
Worth Considering
💪 Health & Fitness
4.7😊(3.1K ratings)
FreeAdsIn-App Purchases
#28in 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

More Basal Body Temperature Tracker apps to explore

4
Kindara: Fertility Tracker
Kindara: Fertility Tracker
Kindara: Fertility Tracker
Ovulation & fertility tracker
Free

Track your menstrual cycle, ovulation, and fertility with our user-friendly app. Stay informed about your reproductive health, record symptoms, and receive personalized insights for better family planning.

🏥 Medical
(9.9K)
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
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
(55K)
7
Body Temperature & Thermometer
Body Temperature & Thermometer
Body Temperature & Thermometer
Temperature Tracker & Analyzer
Free

Track and analyze your body temperature with this intuitive app, featuring detailed symptom logging, interactive charts, and smart data visualization. Monitor your health trends and export records for effective management.

🔧 Utilities
(57)
8
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)
9
Body Temperature & Fever Check
Body Temperature & Fever Check
Body Temperature & Fever Check
My Thermometer: Measure Temp
Free

This application estimates and logs your body temperature using biometric inputs, such as pulse and respiration rate, and allows you to manually enter and save temperature readings. Try it out and get a rough idea of your body temperature, but keep in mind it's not intended for medical use.

🔧 Utilities
(0)
10
Clue Calendário Menstrual
Clue Calendário Menstrual
Clue Calendário Menstrual
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
(196K)
11
Tempdrop
Tempdrop
Tempdrop
by Tempdrop Inc
Free

Track and analyze fertility patterns with a personalized thermometer that learns temperature variations to predict ovulation. Note: This is a complementary tool and not a stand-alone fertility monitor. The app requires correct and consistent use for optimal performance.

💪 Health & Fitness
(694)
12
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)
13
Wrist Temperature Tracker
Wrist Temperature Tracker
Wrist Temperature Tracker
Watch Temperature & Widgets
Free

Monitor your wrist temperature with ease using this app for Apple Watch 8 and Ultra. Track your nightly temperatures, analyze the data, and view it conveniently on your lock screen widget, normal widget, and complication. View and analyze your wrist temperature data effortlessly - Try it out now!

💪 Health & Fitness
(123)
14
Thermometer: Body Temperature
Thermometer: Body Temperature
Thermometer: Body Temperature
Fever & Temperature Checker
Free

Track body temperature and fever symptoms easily with this intuitive app. Monitor temperature trends, record symptoms, and set reminders for medication. Stay on top of your health effortlessly.

💪 Health & Fitness
(290)
15
Body Temperature Tracker – Log
Body Temperature Tracker – Log
Body Temperature Tracker – Log
Easy body temperature tracking
Free

This application allows users to easily record and manage their body temperature, with features such as a calendar view, icon changes for morning, day, and night, and a graph display. Ideal for personal and family use, it offers a simple and ad-free experience with optional premium features for CSV export and ad removal.

🏥 Medical
(14)
16
Oura
Oura
Oura
by Oura Health Oy
Free

Monitor and improve your health with a revolutionary smart ring that tracks over 20 biometrics like heart rate and body temperature. Get personalized insights on sleep, activity, and stress resilience, and track your daily movements to stay balanced and healthy. Start optimizing your routine today!

💪 Health & Fitness
(251K)
17
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)
18
生理周期トラッカー - Cycles
生理周期トラッカー - Cycles
生理周期トラッカー - Cycles
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)
19
Fever Thermometer | Body Temp
Fever Thermometer | Body Temp
Fever Thermometer | Body Temp
Temperature App for 98.6 Gauge
Free

Track body temperatures for you and your family with an easy-to-use Thermometer Body Temp app. No sign-up or internet needed, just log temperatures and notes, with the option to upgrade for advanced features like temperature tracking and PDF export. Always consult a doctor with your data for medical advice.

🏥 Medical
(246)
20
Period Tracker ‎
Period Tracker ‎
Period Tracker ‎
Menstrual Cycle Tracker
Free

Track your menstrual cycle, moods, health symptoms, and more discreetly with this stylish period tracking app. Predict periods, fertility days, and sync data to your calendar. Stay organized, plan ahead, and follow your cycle with ease.

💪 Health & Fitness
(8.2K)