Best Free Oxygen Monitor Apps

231+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated July 2026

Whether you're new to free oxygen monitor or looking for an upgrade, our curated collection of 231+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Free Oxygen Monitor

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
#23in 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
Blood Oxygen Level: Analyzer#2

Blood Oxygen Level: Analyzer by Svetlana Rabosh

O2, pulse calculator: Tracker
Strong Contender
🏥 Medical
3.6(28 ratings)
FreeIn-App Purchases
Blood Oxygen Level: Analyzer screenshot 1
Blood Oxygen Level: Analyzer screenshot 2
Blood Oxygen Level: Analyzer screenshot 3
Blood Oxygen Level: Analyzer screenshot 4
Blood Oxygen Level: Analyzer screenshot 5
Blood Oxygen Level: Analyzer screenshot 6

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.

Blood Oxygen | O2 Monitor app+#3

Blood Oxygen | O2 Monitor app+ by Yana Shestakova

Saturation Level + Pulse Rate
Worth Considering
🏥 Medical
4.6(379 ratings)
FreeIn-App Purchases
Blood Oxygen | O2 Monitor app+ screenshot 1
Blood Oxygen | O2 Monitor app+ screenshot 2
Blood Oxygen | O2 Monitor app+ screenshot 3
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Blood Oxygen | O2 Monitor app+ screenshot 5

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.

More Free Oxygen Monitor apps to explore

4
Heart Rate Monitor - Pulse BPM
Heart Rate Monitor - Pulse BPM
Heart Rate Monitor - Pulse BPM
Pulse: Step,Health HR&Oximeter
Free

Easily monitor your heart rate, track steps, and record vital health metrics like blood pressure and body temperature. Save and visualize your health data, set reminders, and share your progress with friends and family. This app provides convenient health insights for daily well-being.

Measure heart rate anywhereTrack steps, blood pressure, and body temperatureSave and visualize health data
💪 Health & Fitness
(128K)
freemium
5
Blood Oxygen Level
Blood Oxygen Level
Blood Oxygen Level
Record pulse and oxygen level
Free

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.

Record pulse measurementsRecord blood oxygen levelsDaily measurement tracking
🏥 Medical
(1.8K)
ad-supported
6
Oximeter - Track Oxygen SpO2
Oximeter - Track Oxygen SpO2
Oximeter - Track Oxygen SpO2
Blood O2 Monitor Tracker
Free

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.

Display, record, and view SpO2 dataDetailed analytics with data spikesNutrition and meditation guides
💪 Health & Fitness
(466)
free with in-app purchases
7
Instant Heart Rate: HR Monitor
Instant Heart Rate: HR Monitor
Instant Heart Rate: HR Monitor
Pulse Tracker & Stress Test
Free

Measure your heart rate and stress levels accurately using your phone's camera. Track trends, view pulse waveforms, and utilize a StandUp test for fitness insights. Integrates with Apple Health.

Heart rate measurementStress level checkPulse waveform graphs
💪 Health & Fitness
(229K)
free with in-app purchases
8
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
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
OxiTone
OxiTone
OxiTone
A closure focus
Free

This app allows users to monitor vital physiological data, including blood oxygen levels and pulse rate. It also tracks oxygen usage and includes a health assessment questionnaire. Data can be input manually or synced with compatible medical devices.

Track blood oxygen level (SpO2)Monitor pulse rateRecord activity levels
🏥 Medical
(1)
free
11
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
12
BloodOxygenMonitor
BloodOxygenMonitor
BloodOxygenMonitor
blood oxygen monitoring
Free
$0.99 | 100% OFF
💪 Health & Fitness
(0)
13
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
14
Super Oxygen
Super Oxygen
Super Oxygen
by CHOICEMMEDUSA, LLC
Free
💪 Health & Fitness
(0)
15
Pulsedo: Heart Rate Monitor
Pulsedo: Heart Rate Monitor
Pulsedo: Heart Rate Monitor
Blood Pressure & Oxygen Level
Free

Track your pulse, blood pressure, oxygen levels, and body temperature. Analyze your health indicators with detailed measurements and a meditation section to help restore your heart rate. Unlimited access to all features is available with a subscription.

Heart rate monitorStore blood pressure dataSave blood oxygen levels
💪 Health & Fitness
(3.3K)
subscription
16
Heart Rate: Pulse Monitor & BP
Heart Rate: Pulse Monitor & BP
Heart Rate: Pulse Monitor & BP
Blood Pressure & Pulse Point
Free

Monitor your heart rate, pulse, and blood pressure with this comprehensive health companion. Track trends, log readings, and gain insights into your cardiovascular health. Includes features for stress monitoring and sleep improvement.

Instant heart rate measurementBlood pressure trackingPulse trend analysis
💪 Health & Fitness
(2.5K)
free with in-app purchases
17
Blood Pressure Monitor-BP Log
Blood Pressure Monitor-BP Log
Blood Pressure Monitor-BP Log
Heart Rate & Blood Pressure
Free

Track your heart rate, blood pressure, and diet with this comprehensive health companion. Utilize your phone's camera for heart rate checks and AI for food calorie analysis. Includes sleep sounds to aid relaxation and improve sleep quality.

Heart rate monitoring via phone cameraBlood pressure recording and trend analysisSoothing sleep soundscapes
🌟 Lifestyle
(11K)
free
18
Blood Oxygen App- Watch
Blood Oxygen App- Watch
Blood Oxygen App- Watch
Log & track pulse o2 levels
Free

Monitor and manage vital health metrics like blood oxygen, heart rate, and blood pressure. Receive automatic alerts for critical changes and utilize breathing exercises for relaxation. Syncs with Apple Health for a comprehensive view of your well-being.

Blood oxygen (SpO2) logging and trackingAutomatic low oxygen level notificationsHeart rate and HRV monitoring
🏥 Medical
(611)
free with in-app purchases
19
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
20
Inogen Connect Portable Oxygen
Inogen Connect Portable Oxygen
Inogen Connect Portable Oxygen
by Inogen, Inc.
Free

Monitor your portable oxygen concentrator's battery life, settings, and receive important updates. Access helpful videos and troubleshooting information 24/7, all from your mobile device.

Real-time statsBattery life monitoringCurrent settings display
🏥 Medical
(266)
free