Best Basal Body Temperature Tracker Apps

249+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated August 2026

Finding the right basal body temperature tracker apps can be overwhelming with so many options. We've analyzed 249+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Basal Body Temperature Tracker Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Femometer Fertility TrackerFemometer Fertility TrackerFree4.9★ (70K)NoYesAug 2026
2Natural Cycles: Fertility AppNatural Cycles: Fertility AppFree4.8★ (30K)YesYesAug 2026
3Body Temperature App For FeverBody Temperature App For FeverFree4.7★ (22K)NoYesAug 2026
4Body Temperature & ThermometerBody Temperature & ThermometerFree4.6★ (57)YesNoAug 2026
5Body Temperature TrackerBody Temperature TrackerFreeNoYesJul 2026
6OuraOuraFree4.9★ (282K)NoNoAug 2026
7Premom-Ovulation Tracker, PCOSPremom-Ovulation Tracker, PCOSFree4.8★ (59K)NoYesAug 2026
8Thermometer: Body TemperatureThermometer: Body TemperatureFree4.6★ (402)NoYesAug 2026

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

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
Natural Cycles: Fertility App#2

Natural Cycles: Fertility App by NaturalCycles Nordic AB

Ovulation Tracker・FDA-cleared
Strong Contender
💪 Health & Fitness
4.8😊(30K ratings)
FreeAdsIn-App Purchases
#34in 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
Body Temperature App For Fever#3

Body Temperature App For Fever by AboutMe Apps, Inc.

Thermometer. Checker. Tracker
Worth Considering
🏥 Medical
4.7😞(22K ratings)
FreeIn-App Purchases
#19in 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

More Basal Body Temperature Tracker apps to explore

4
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
5
Body Temperature Tracker
Body Temperature Tracker
Body Temperature Tracker
Fever Tracking & Checker
Free
💪 Health & Fitness
(0)
6
Oura
Oura
Oura
by Oura Health Oy
Free

This smart ring and companion app provide daily health insights and personalized recommendations based on your body's biometrics. Track sleep, activity, and readiness with actionable guidance to improve overall wellness and understand your body's signals.

Daily Sleep, Activity, and Readiness scoresAccurate biometric tracking (heart rate, temp, SpO2)In-depth sleep analysis and optimization tips
💪 Health & Fitness
(282K)
free
7
Premom-Ovulation Tracker, PCOS
Premom-Ovulation Tracker, PCOS
Premom-Ovulation Tracker, PCOS
Fertility, Period & 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
(59K)
free with in-app purchases
8
Thermometer: Body Temperature
Thermometer: Body Temperature
Thermometer: Body Temperature
Fever & Temperature Checker
Free

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.

Temperature estimation without a thermometerApple Watch Series 8 sync for readingsHigh fever alerts
💪 Health & Fitness
(402)
free with in-app purchases
9
Kindara: Fertility Tracker
Kindara: Fertility Tracker
Kindara: Fertility Tracker
Ovulation & fertility tracker
Free

Understand your menstrual cycle and reproductive health with science-backed tools. Track fertility signs, get data-driven predictions, and connect with a supportive community. Ideal for managing fertility, pregnancy planning, or discussing health with your doctor.

Fertility sign tracking (BBT, cervical mucus, etc.)Data-driven fertility and period predictionsCustomizable data fields
🏥 Medical
(10K)
freemium
10
Flo Cycle & Period Tracker
Flo Cycle & Period Tracker
Flo Cycle & Period Tracker
Ovulation & Pregnancy Calendar
Free

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.

Period and ovulation trackingFertility and pregnancy supportSymptom and mood logging
💪 Health & Fitness
(1.9M)
free with in-app purchases
11
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
12
Period Tracker Period Calendar
Period Tracker Period Calendar
Period Tracker Period Calendar
Cycle Tracker & Ovulation
Free

This app helps women track their menstrual cycles, ovulation, and fertility. It offers personalized advice, pregnancy tracking, and reminders for birth control and medication. Your data is kept private and stored locally on your device.

Period and ovulation predictionFertility trackingPregnancy mode with week-by-week growth
💪 Health & Fitness
(173K)
free with in-app purchases
13
Wrist Temperature Tracker
Wrist Temperature Tracker
Wrist Temperature Tracker
Wrist Trends & Watch Widgets
Free

Automatically analyzes your cycle, ovulation, and temperature patterns using Apple Watch data. Visualize your cycle phases with intelligent charting and trend insights. Advanced features like cycle overlays and widgets require an in-app purchase.

Automatic cycle detectionOvulation and temperature pattern analysisCycle comparison and overlays
💪 Health & Fitness
(127)
free with in-app purchases
14
Body Temperature Recorder
Body Temperature Recorder
Body Temperature Recorder
Easy input and show graph
Free

Easily record your body temperature and visualize trends with automatic graphing. Track associated symptoms and share your data with healthcare providers or family. Supports multiple users and temperature units.

Record body temperatureAutomatic graphing of temperature trendsSymptom tracking
🏥 Medical
(437)
free with in-app purchases
15
ThermoRegisterPlus
ThermoRegisterPlus
ThermoRegisterPlus
Register Your Body temp. Data
Free

Record your body temperature and basal body temperature data directly to Apple Health. This application allows manual entry of temperature readings from your phone, helping you track your health metrics.

Register body temperature dataRegister basal body temperature dataData syncs to Health app
💪 Health & Fitness
(1)
free with in-app purchases
16
Pulseva: Heart Rate Tracker
Pulseva: Heart Rate Tracker
Pulseva: Heart Rate Tracker
Monitoring Blood Pressure
Free

Monitor your heart rate, blood pressure, and blood sugar with daily tracking and reminders. Features AI-powered calorie estimation, hydration goals, and a step counter to support an active lifestyle. Access health insights and guidance.

Heart rate and variability trackingBlood pressure and sugar loggingDaily health reminders
💪 Health & Fitness
(1)
ad-supported
17
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
18
Body Temperature・Fever Checker
Body Temperature・Fever Checker
Body Temperature・Fever Checker
Thermometer For Fever Tracker
Free
☀️ Weather
(0)
19
Infrared Thermal Imager
Infrared Thermal Imager
Infrared Thermal Imager
Infrared Thermal Imager
Free

This utility app functions as a thermal camera, offering a wide temperature measurement range. It allows users to capture images and videos, track high and low temperatures, and set custom alarms for temperature thresholds. The app also supports various regional temperature measurement modes.

Wide temperature measurement rangePicture and video captureHigh and low temperature tracking
🔧 Utilities
(1)
free
20
IR Sync
IR Sync
IR Sync
by SoCal Dab Tools, LLC
Free

This app connects to precision temperature monitors via Bluetooth to display real-time readings and control device settings. Save custom presets, set smart alerts, and review session history. It also features a QR scanner for loading manufacturer profiles.

Real-time temperature monitoringCustomizable presetsSmart alerts and notifications
🔧 Utilities
(1)
free

FAQ about Basal Body Temperature Tracker

What are the best basal body temperature tracker apps for iPhone?
Femometer Fertility Tracker tops our basal body temperature tracker apps ranking as of August 2026, with a 4.9-star average from 70K App Store ratings, and it's free to download.
Yes — 20 of the top basal body temperature tracker apps we rank are free to download, including Femometer Fertility Tracker and Natural Cycles: Fertility App.
Femometer Fertility Tracker has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ basal body temperature tracker apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Femometer is a smart ovulation and fertility tracker designed to help users understand and manage their menstrual cycles. It accurately predicts ovulation and fertile windows, tracks periods, and records various health data to provide insights for conception or general health monitoring.
Key features include period and PMS tracking, ovulation and fertile window prediction, BBT and CM logging, recording of pregnancy test results, personalized fertility insights, conception guidance, and tools to track pregnancy progress.

Related searches