Best Free Blood Oxygen App Monitor

242+ iOS apps curated and reviewed

4.1 avg rating
19 free apps
Updated August 2026

Blood Oxygen App is the household name in free blood oxygen app monitor, but it's far from the only option. We track 242+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Free Blood Oxygen App Monitor (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen AppBlood Oxygen AppFree4.6★ (31K)NoYesAug 2026
2Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (423)NoYesAug 2026
3Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoAug 2026
4Blood Oxygen App+Blood Oxygen App+Free4.1★ (474)YesYesAug 2026
5Blood Pressure App Free:No AdsBlood Pressure App Free:No AdsFree4.5★ (58)NoYesAug 2026
6Oximeter - Track Oxygen SpO2Oximeter - Track Oxygen SpO2Free4.5★ (466)NoYesAug 2026
7Blood Oxygen App- WatchBlood Oxygen App- WatchFree4.2★ (635)NoYesAug 2026
8Blood Oxygen Level: AnalyzerBlood Oxygen Level: AnalyzerFree3.9★ (190)NoYesAug 2026

Top Picks for Free Blood Oxygen App 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
#10in 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 | O2 Monitor app+#2

Blood Oxygen | O2 Monitor app+ by Yana Shestakova

Saturation Level + Pulse Rate
Strong Contender
🏥 Medical
4.6(423 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
Blood Oxygen | O2 Monitor app+ screenshot 4
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.

Blood Oxygen Level#3

Blood Oxygen Level by Enrique Villahermosa Juara

Record pulse and oxygen level
Worth Considering
🏥 Medical
4.3😞(2K 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

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 Free Blood Oxygen App Monitor apps to explore

4
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
(474)
free with in-app purchases
5
Blood Pressure App Free:No Ads
Blood Pressure App Free:No Ads
Blood Pressure App Free:No Ads
Blood Pressure Log & Tracker
Free

Monitor your heart rate, stress levels, and long-term health trends. This app provides instant heart rate checks, stress tracking with relaxation tips, and personalized insights based on your vital signs. Keep all your health data in one secure place.

Instant heart rate checksStress level trackingLong-term health trend analysis
💪 Health & Fitness
(58)
free with in-app purchases
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
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
(635)
free with in-app purchases
8
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
(190)
subscription
9
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
10
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
11
Free Blood Pressure Monitor™
Free Blood Pressure Monitor™
Free Blood Pressure Monitor™
Tracker Log Monitor for iphone
Free

Easily track your blood pressure, heart rate, weight, and glucose with this comprehensive health monitoring app. Visualize your progress with insightful charts and trends to understand your body's response over time and build healthier routines.

Track and log BP, heart rate, weight, and glucoseVisualize progress with charts and trendsMedication tracking and reminders
💪 Health & Fitness
(11)
ad-supported
12
SPO2er: Blood Oxygen on Watch
SPO2er: Blood Oxygen on Watch
SPO2er: Blood Oxygen on Watch
SPO₂ Monitoring from HealthKit
$0.99

Visualize your blood oxygen levels with clear graphs and historical data. This app syncs with HealthKit to display your latest readings, 24-hour trends, and past samples on your iPhone and Apple Watch. It prioritizes privacy with no accounts, ads, or data sharing.

Latest blood oxygen reading display24-hour trend graphDetailed historical samples
💪 Health & Fitness
(6)
paid
13
BloodOxygenMonitor
BloodOxygenMonitor
BloodOxygenMonitor
blood oxygen monitoring
Free
$0.99 | 100% OFF
💪 Health & Fitness
(0)
14
Blood Pressure App-HealthPal
Blood Pressure App-HealthPal
Blood Pressure App-HealthPal
Log Sugar & Heart Rate Monitor
Free

This app helps you manage your health by tracking heart rate, blood sugar, blood pressure, and blood oxygen levels. It provides daily data insights, charts, and health tips to empower informed decisions about your well-being.

Heart rate monitoring via cameraBlood sugar trackingBlood pressure recording
💪 Health & Fitness
(271)
ad-supported
15
Blood Oxygen SpO₂ Tracker
Blood Oxygen SpO₂ Tracker
Blood Oxygen SpO₂ Tracker
Health Trends, Watch & Widgets
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
(128)
free with in-app purchases
16
Heart Pulse Monitor-Health Log
Heart Pulse Monitor-Health Log
Heart Pulse Monitor-Health Log
Blood Pressure & Oxygen Diary
Free

Monitor your heart health and daily wellness using your smartphone. Measure pulse with your camera, log blood pressure and oxygen levels, and track habits supporting a healthy heart. Includes quick stress tests and notes for comprehensive health records.

Measure pulse with phone cameraLog blood pressureRecord blood oxygen levels
💪 Health & Fitness
(24)
free with in-app purchases
17
Heart Nest: Wellness Monitor
Heart Nest: Wellness Monitor
Heart Nest: Wellness Monitor
Blood Pressure & Heart Rate
Free

Track heart rate, blood pressure, and other wellness metrics for your family. Monitor trends and gain insights into daily health changes with easy-to-read dashboards and individual profiles.

Camera-based heart rate measurementBlood pressure and blood oxygen recordingIndividual family member profiles
🔧 Utilities
(3)
free with in-app purchases
18
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
19
Instant Pulse - Blood Pressure
Instant Pulse - Blood Pressure
Instant Pulse - Blood Pressure
Heart Mate, AFib, Oxygen,HRV
Free

Monitor and manage your pulse rate, rhythm, blood pressure, and oxygen levels using your smartphone camera. Quickly check your heart rhythm and track vital signs for general health and wellbeing.

Track blood pressure and pulse rateMonitor blood oxygen levelsReal-time pulse monitoring
💪 Health & Fitness
(5.3K)
subscription
20
Pulse Monitor-Blood Sugar
Pulse Monitor-Blood Sugar
Pulse Monitor-Blood Sugar
by PIECES OF WOOD CO., LIMITED
Free

This app offers precise heart rate and blood pressure monitoring, presenting data through intuitive charts. It also provides a rich library of health articles on various topics to support a healthier lifestyle.

Precise heart rate measurementBlood pressure tracking and analysisIntuitive data charts
🔧 Utilities
(1)
free

FAQ about Free Blood Oxygen App Monitor

What is the best free blood oxygen app monitor for iPhone?
Blood Oxygen App tops our free blood oxygen app monitor ranking as of August 2026, with a 4.6-star average from 31K App Store ratings, and it's free to download.
Blood Oxygen App has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 242+ free blood oxygen app monitor on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to monitor your blood oxygen levels and heart rate. You can use your phone's camera to estimate heart rate and sync with your Apple Watch for blood oxygen readings. It also provides features like data logging, export options, breathing exercises, and sleep reports.
You can monitor your blood oxygen and heart rate by syncing with your Apple Watch. Additionally, the app can estimate your heart rate using your phone's camera. The data can then be logged and tracked within the app.