Best Basal Body Temperature Apps

245+ iOS apps curated and reviewed

3.9 avg rating
19 free apps
Updated August 2026

Out of 245+ basal body temperature apps on iOS, 19 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 Basal Body Temperature Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Body Temperature App For FeverBody Temperature App For FeverFree4.7★ (22K)NoYesAug 2026
2Thermometer: Body TemperatureThermometer: Body TemperatureFree4.6★ (402)NoYesAug 2026
3Femometer Fertility TrackerFemometer Fertility TrackerFree4.9★ (70K)NoYesAug 2026
4Basal body temperature : eggysBasal body temperature : eggysFree1.8★ (4)YesNoMay 2026
5Natural Cycles: Fertility AppNatural Cycles: Fertility AppFree4.8★ (30K)YesYesAug 2026
6Body Temperature & ThermometerBody Temperature & ThermometerFree4.6★ (57)YesNoAug 2026
7Body Temperature - HealthTrackBody Temperature - HealthTrackFree4.5★ (76)NoYesAug 2026
8Body Temperature NotepadBody Temperature NotepadFreeYesYesMay 2026

Top Picks for Basal Body Temperature

Body Temperature App For Fever#1

Body Temperature App For Fever by AboutMe Apps, Inc.

Thermometer. Checker. Tracker
Editor's Choice
🏥 Medical
4.7😞(22K ratings)
FreeIn-App Purchases
#16in 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

Estimate and track body temperature trends to monitor potential fever symptoms. Log data, export reports for healthcare providers, and monitor family members' temperatures. Includes features like heart rate estimation and symptom tracking.

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
Thermometer: Body Temperature#2

Thermometer: Body Temperature by 199 Developments Private Limited

Fever & Temperature Checker
Strong Contender
💪 Health & Fitness
4.6😞(402 ratings)
FreeIn-App Purchases
Thermometer: Body Temperature screenshot 1
Thermometer: Body Temperature screenshot 2
Thermometer: Body Temperature screenshot 3
Thermometer: Body Temperature screenshot 4
Thermometer: Body Temperature screenshot 5

Estimate body temperature using your smartphone without a physical thermometer. Track heart rate, blood pressure, and sync with Apple Watch for real-time fever alerts. Log custom health data and generate shareable PDF reports.

What We Love

  • 🚀 Accurate temperature readings
  • 👍 Helpful for tracking health issues
  • 👍 Useful when no thermometer is available
  • 👍 Reliable app with good support

Room to Improve

  • 🐛 Inaccurate temperature readings
  • 💰 Expensive subscription
  • 🤖 Outdated user interface
Femometer Fertility Tracker#3

Femometer Fertility Tracker by Bongmi Global Group

Ovulation & Period Calendar
Worth Considering
💪 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

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.

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

More Basal Body Temperature apps to explore

4
Basal body temperature : eggys
Basal body temperature : eggys
Basal body temperature : eggys
Period tracker
Free

Track your basal body temperature daily to understand your fertility window and predict future cycles. The app offers easy daily recording, visual graphs, and calendar views to help you monitor your health and potential for pregnancy.

Basal body temperature chartingPregnancy chance predictionCalendar view with future dates
💪 Health & Fitness
(4)
ad-supported
5
Natural Cycles: Fertility App
Natural Cycles: Fertility App
Natural Cycles: Fertility App
Ovulation Tracker・FDA-cleared
Free

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.

Hormone-free contraceptionOvulation tracking via temperaturePersonalized cycle adaptation
💪 Health & Fitness
(30K)
subscription
6
Body Temperature & Thermometer
Body Temperature & Thermometer
Body Temperature & Thermometer
Temperature Tracker & Analyzer
Free

Log and analyze your body temperature with detailed symptom tracking. Visualize trends with interactive charts and export your health records. Supports multiple languages for global users.

Body temperature trackingSymptom loggingInteractive charts
🔧 Utilities
(57)
ad-supported
7
Body Temperature - HealthTrack
Body Temperature - HealthTrack
Body Temperature - HealthTrack
Sick Tracker, Thermometer
Free

Monitor your body temperature, heart rate, and well-being with this comprehensive health tracking app. It integrates with Apple Health, offers personalized weather-based advice, and provides access to health articles and guided meditations.

Body temperature trackingApple Health integrationHeart rate monitoring via camera
💪 Health & Fitness
(76)
freemium
8
Body Temperature Notepad
Body Temperature Notepad
Body Temperature Notepad
Manage daily body temperature
Free
💪 Health & Fitness
(0)
9
Body Temperature Tracker – Log
Body Temperature Tracker – Log
Body Temperature Tracker – Log
Easy body temperature tracking
Free

Easily log and manage body temperature records with a calendar and graph view. Track multiple users, perfect for family health monitoring. Offers essential features for simple temperature management.

Body temperature loggingCalendar viewGraph history
🏥 Medical
(14)
free with in-app purchases
10
Body Temperature App
Body Temperature App
Body Temperature App
Body Temperature Log For Fever
Free

This app allows users to log body temperature readings along with associated symptoms like cough or body pain. It facilitates easy sharing of this data with healthcare providers via email. The application supports managing records for multiple individuals and integrates with Apple's Health App.

Log body temperature readingsRecord associated symptomsShare data via email
🏥 Medical
(455)
free with in-app purchases
11
Body Temperature Tracker
Body Temperature Tracker
Body Temperature Tracker
Fever Tracking & Checker
Free
💪 Health & Fitness
(0)
12
Thermo: Temperature Check In
Thermo: Temperature Check In
Thermo: Temperature Check In
Fever & body health tracker
Free

Easily track family health by logging temperature changes and other vital signs. Create individual profiles to monitor each person's well-being over time with helpful charts and graphs. Set personalized reminders for consistent tracking and utilize voice input for added convenience.

Family health trackingIndividual profilesTemperature logging
💪 Health & Fitness
(97)
freemium
13
Basal Body Temperature Calc.
Basal Body Temperature Calc.
Basal Body Temperature Calc.
Basal body temperature
$0.99

This application helps women track and visualize their basal body temperature over time. The resulting charts can aid in understanding menstrual cycles, identifying fertile periods, and predicting ovulation for family planning.

Daily temperature and health loggingMenstrual cycle trackingFertility phase identification
🏥 Medical
(18)
paid
14
TapTemperature for Health App
TapTemperature for Health App
TapTemperature for Health App
Fastest log BT (as manual).
Free

Quickly log body and basal body temperature data into Apple Health. Designed for users without smart thermometers who frequently measure and record temperatures manually. Offers customizable modes and seamless integration with the Health app.

Manual temperature loggingBasal body temperature modeSecond decimal place support
💪 Health & Fitness
(1)
free
15
Body Temperature Fever Checker
Body Temperature Fever Checker
Body Temperature Fever Checker
Thermometer App, Temp Tracker
Free

Easily track and analyze your body temperature readings on your iOS device. Record measurements in Celsius or Fahrenheit, add notes about symptoms, and generate shareable reports for healthcare professionals. The app offers cloud storage, multiple profiles, and helpful reminders.

Record temperature in Celsius and FahrenheitAdd notes and symptom dataCloud storage and multi-device access
🏥 Medical
(308)
free with in-app purchases
16
Body Temperature App Fever Log
Body Temperature App Fever Log
Body Temperature App Fever Log
Thermometer, check termometro
Free

This app acts as a family health station, allowing you to log temperature, vital signs, symptoms, and medications. It provides interactive charts and reminders to help manage health for all family members. Syncs with Apple Health for comprehensive tracking.

Temperature tracking with chartsMedication and pill remindersVital signs monitoring (SpO2, Heart Rate, Resp. Rate)
🏥 Medical
(7)
free with in-app purchases
17
Body Temperature・Fever Checker
Body Temperature・Fever Checker
Body Temperature・Fever Checker
Thermometer For Fever Tracker
Free
☀️ Weather
(0)
18
Body Temperature Tracking App
Body Temperature Tracking App
Body Temperature Tracking App
Personal & family temp log
Free

Log body temperature and other health metrics manually or with connected smart thermometers. Track trends, export reports, and monitor medication intake. Supports over 70 smart thermometer brands.

Manual temperature loggingBluetooth smart thermometer syncTrack medication intake
💪 Health & Fitness
(18)
freemium
19
Temperature Checker
Temperature Checker
Temperature Checker
Room & Body Heat Monitor
Free

Monitor your environment and personal well-being with this dual-purpose temperature tracker. It provides hyper-local weather forecasts and allows for quick logging of body temperature, offering insights into comfort and wellness.

Dual temperature tracking (weather, room, body)Live weather forecastsSmart profiles for family and friends
💪 Health & Fitness
(6)
free with in-app purchases
20
calera - core body temp
calera - core body temp
calera - core body temp
Temperature Monitoring System
Free
💪 Health & Fitness
(0)

FAQ about Basal Body Temperature

What are the best basal body temperature apps for iPhone?
Body Temperature App For Fever tops our basal body temperature apps ranking as of August 2026, with a 4.7-star average from 22K App Store ratings, and it's free to download.
Yes — 19 of the top basal body temperature apps we rank are free to download, including Body Temperature App For Fever and Thermometer: Body Temperature.
Body Temperature App For Fever has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 245+ basal body temperature apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to estimate and track your body temperature trends to help you monitor potential fever symptoms. It also enables you to log data, export reports for your doctor, and even estimate your heart rate using your phone's camera.
No, this app is for wellness use only and cannot be used for diagnostics or medical purposes. It is intended to improve your awareness of general wellness and does not diagnose, treat, mitigate, or prevent any disease or symptom. Always seek professional medical advice for any health concerns.

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