Best O2 Saturation Apps

153+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated June 2026

Finding the right o2 saturation app can be overwhelming with so many options. We've analyzed 153+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for O2 Saturation

Blood Oxygen App#1

Blood Oxygen App by AboutMe Apps, Inc.

SpO2 Level Monitor・Heart Rate
Editor's Choice
🏥 Medical
4.6😞(31K ratings)
FreeIn-App Purchases
#26in Medical
Blood Oxygen App screenshot 1
Blood Oxygen App screenshot 2
Blood Oxygen App screenshot 3
Blood Oxygen App screenshot 4
Blood Oxygen App screenshot 5
Blood Oxygen App screenshot 6

Monitor blood oxygen levels and heart rate using your phone's camera or by syncing with your Apple Watch. Track vital signs, share data with your doctor, and access curated health articles. Includes breathing exercises and sleep reports.

What We Love

  • ⭐ Awesome app
  • ⭐ Very easy to use
  • ⭐ Helpful for monitoring health conditions
  • ⭐ Detailed data logging

Room to Improve

  • ❌ Doesn't accurately measure blood oxygen levels
  • ❌ Requires premium subscription for key features
  • ❌ Inconsistent and unreliable performance
Oximeter - Track Oxygen SpO2#2

Oximeter - Track Oxygen SpO2 by AVTOSTROI, OOO

Blood O2 Monitor Tracker
Strong Contender
💪 Health & Fitness
4.5(466 ratings)
FreeIn-App Purchases
Oximeter - Track Oxygen SpO2 screenshot 1
Oximeter - Track Oxygen SpO2 screenshot 2
Oximeter - Track Oxygen SpO2 screenshot 3
Oximeter - Track Oxygen SpO2 screenshot 4

Monitor and record your blood oxygen saturation (SpO2) levels with this personal health tracking app. It offers detailed analytics, daily wellness guides, and data export options. Sync your health data with Apple Health for a comprehensive overview.

Blood Oxygen Level#3

Blood Oxygen Level by Enrique Villahermosa Juara

Record pulse and oxygen level
Worth Considering
🏥 Medical
4.3😞(1.8K ratings)
FreeAds
Blood Oxygen Level screenshot 1
Blood Oxygen Level screenshot 2
Blood Oxygen Level screenshot 3
Blood Oxygen Level screenshot 4
Blood Oxygen Level screenshot 5
Blood Oxygen Level screenshot 6

Easily record your daily pulse and blood oxygen levels. Track your health statistics over time with simple data entry and clear visualizations. Requires an external device like a pulse oximeter or smartwatch for measurements.

What We Love

  • 👍 Simple and easy interface
  • 🚀 Impressive work
  • 💡 Helpful for recording health conditions

Room to Improve

  • 🐛 Doesn't record anything
  • 🐛 Flickering and freezing issues
  • 🔋 Ads make it unusable

More O2 Saturation apps to explore

4
Temperature + Blood Oxygen app
Temperature + Blood Oxygen app
Temperature + Blood Oxygen app
Thermometer & saturation level
Free

Monitor your body temperature and blood oxygen saturation levels. Visualize your health trends over time with this simple tracking tool. Gain insights into your well-being.

Track body temperatureMonitor blood oxygen levelsView health trends
🏥 Medical
(72)
free with in-app purchases
5
Blood Oxygen Level: Analyzer
Blood Oxygen Level: Analyzer
Blood Oxygen Level: Analyzer
O2, pulse calculator: Tracker
Free

Track your blood oxygen saturation levels and monitor changes over time. Log additional symptoms to gain a more comprehensive understanding of your condition. Supports multiple user profiles and synchronizes with HealthKit for pulse and oxygen data.

Oxygen saturation trackingSymptom loggingHistory of changes
🏥 Medical
(28)
subscription
6
Blood Oxygen | O2 Monitor app+
Blood Oxygen | O2 Monitor app+
Blood Oxygen | O2 Monitor app+
Saturation Level + Pulse Rate
Free

Track your blood oxygen saturation (SpO2) and pulse rate daily. Log readings from your oximeter, monitor your normal range, and stay informed about your health. Features include a log diary, multi-profile support, and Apple Health synchronization.

Log oxygen saturation (SpO2) and pulse rateFast and accurate pulse measurementMulti-profile support for family members
🏥 Medical
(379)
freemium
7
Blood Oxygen Monitor - OxyByte
Blood Oxygen Monitor - OxyByte
Blood Oxygen Monitor - OxyByte
SpO2 Respiration Health O2 App
Free

Monitor blood oxygen, respiratory rate, and symptoms with this respiratory health app. It syncs with Apple Health, provides detailed historical data, and offers insights into breathing patterns and environmental factors.

Blood oxygen (SpO₂) trackingRespiratory rate monitoringSymptom logging
🏥 Medical
(0)
free with in-app purchases
8
O2 Care - SpO2 HRV Biofeedback
O2 Care - SpO2 HRV Biofeedback
O2 Care - SpO2 HRV Biofeedback
Sleep Breathe Inner Balance
Free

Analyze and improve sleep and stress by tracking SpO2, heart rate variability, and practicing guided breathing exercises. Connects with Bluetooth oximeters for detailed insights into your mind-body health and potential risks.

Overnight Sleep SpO2 analysisHRV analysisResonance Breath (HRV Biofeedback)
💪 Health & Fitness
(46)
free with in-app purchases
9
Blood Oxygen App+
Blood Oxygen App+
Blood Oxygen App+
Heart Rate Monitor Diary
Free

Easily track and monitor your blood oxygen levels and heart rate with a modern, user-friendly interface. Log your measurements, access recent data, and export your records for personal tracking.

Track blood oxygen levelMonitor heart rateLog measurements
🏥 Medical
(471)
free with in-app purchases
10
InPulse - Heart Rate Monitor
InPulse - Heart Rate Monitor
InPulse - Heart Rate Monitor
Log Blood Pressure & Oxygen
Free

Monitor your heart rate using your iPhone's camera and log blood pressure and oxygen saturation. Receive daily wellness assessments, habit tracking, and emotional wellbeing tools. This app is for fitness and general wellness information.

Measure heart rate with cameraLog blood pressure and oxygenDaily wellness assessments
💪 Health & Fitness
(166K)
freemium
11
Blood Oxygen SpO2 Tracker
Blood Oxygen SpO2 Tracker
Blood Oxygen SpO2 Tracker
Pulse Oximeter Tracker
Free
$1.99 | 100% OFF

Track your blood oxygen saturation (SpO₂) with smart alerts and historical data. Understand your overall wellness and make informed health decisions with detailed charts and insights on your iPhone and Apple Watch.

View latest SpO₂ measurementDetailed 7-day averages and chartsCustom low reading notifications
💪 Health & Fitness
(126)
free with in-app purchases
12
SleepWatch - Top Sleep Tracker
SleepWatch - Top Sleep Tracker
SleepWatch - Top Sleep Tracker
Tracker, Sounds, Alarm & Coach
Free

This app helps you understand and improve your sleep. It automatically tracks your sleep patterns, analyzes snoring and other sleep sounds, and provides personalized coaching and tips. Wake up feeling more refreshed with smart alarms and detailed sleep reports.

Automatic sleep trackingSleep sound recording (snoring, etc.)Personalized AI sleep coaching
💪 Health & Fitness
(329K)
freemium
13
Welltory: Health, Heart Rate
Welltory: Health, Heart Rate
Welltory: Health, Heart Rate
Stress, Sleep, BP, O2 Monitor
Free

This app helps you understand your body's signals by analyzing heart rate variability and integrating data from over 1,000 devices and apps. It provides science-backed insights into sleep, stress, heart health, and activity to help you feel better and optimize your wellness.

Heart rate variability analysisSleep quality insightsStress monitoring
💪 Health & Fitness
(130K)
freemium
14
CardioBot: Heart Rate Monitor
CardioBot: Heart Rate Monitor
CardioBot: Heart Rate Monitor
Cardio Activity HRV Tracker
Free

Monitor your heart rate and daily activities with this comprehensive health tracker. It analyzes cardiovascular health, provides smart recommendations based on AHA studies, and offers detailed stress and sleep analysis. View your data through an elegant interface with color-coded charts and timelines.

Heart rate monitoringActivity trackingCardiovascular health analysis
💪 Health & Fitness
(9.7K)
subscription
15
Masimo Personal Health
Masimo Personal Health
Masimo Personal Health
by Masimo Corporation
Free

Track and trend your biometric data to inform lifestyle changes for improved health and athletic performance. View real-time measurements, historical trends, and share your progress. Requires a compatible device.

Real-time measurement viewingMeasurement history tracking and trendingData sharing via email and social media
💪 Health & Fitness
(65)
free
16
iFORA O2
iFORA O2
iFORA O2
Sleep SpO2 HRV Breathe Balance
Free

Analyze sleep quality, heart rate variability, and practice guided breathing exercises. Get personalized recommendations and track your progress over time to improve sleep apnea and mind-body balance.

Sleep SpO2 and heart rate trackingSleep apnea risk screeningHeart rate variability (HRV) analysis
💪 Health & Fitness
(18)
freemium
17
Pulse Plus: Heart Rate Monitor
Pulse Plus: Heart Rate Monitor
Pulse Plus: Heart Rate Monitor
Blood Pressure・Oxygen Tracker
Free

Track your heart rate using your phone's camera with this easy-to-use app. It utilizes photoplethysmography to provide accurate pulse measurements and visualizes your data over time. Integrate with Apple Health and receive reminders to stay on top of your fitness goals.

Heart rate measurement via phone cameraPhotoplethysmography (PPG) technologyPersonalized measurement history dashboard
💪 Health & Fitness
(3.6K)
subscription
18
Walbum™ - Watch Faces Gallery
Walbum™ - Watch Faces Gallery
Walbum™ - Watch Faces Gallery
Live Watch Faces, DIY Widgets
Free

Discover and create personalized watch faces and widgets for your Apple Watch. Customize designs with photos, stickers, and real-time data to match your lifestyle and daily needs. Enjoy a vast gallery of stylish options and dynamic widgets that adapt to your context.

Live watch facesDIY photo facesSmart widgets
🌟 Lifestyle
(33K)
free with in-app purchases
19
Masimo SafetyNet
Masimo SafetyNet
Masimo SafetyNet
by Masimo Corporation
Free

This platform enables healthcare providers to remotely manage patients through digital CarePrograms delivered to smartphones. It actively reminds patients of their care plans and collects monitoring data from tetherless sensors for clinician evaluation.

Remote patient managementDigital CareProgramsSmartphone delivery
🏥 Medical
(365)
free
20
PacMeta Oxygen Saturation
PacMeta Oxygen Saturation
PacMeta Oxygen Saturation
by Pacific Meta Pte Ltd
Free
📚 Education
(0)