Best Free Blood Oxygen App For Apple Watch

237+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated May 2026

Out of 237+ free blood oxygen app for apple watch 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.

Top Picks for Free Blood Oxygen App For Apple Watch

Apple Health#1

Apple Health by Apple Inc.

Editor's Choice
💪 Health & Fitness
3.0😐(7.7K ratings)
Free
Apple Health screenshot 1
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Apple Health screenshot 5

The app provides a centralized hub for storing and tracking health and fitness data from various devices and third-party apps. Users can visualize their data through interactive charts, set goals, track progress, share information with caregivers, and access educational articles. Take control of your health and wellness today!

What We Love

  • 🚀 Accurate step counting
  • 👍 Helpful for tracking health data
  • 🚑 Saved user's life by detecting heart issues
  • 💡 Integrates well with other health apps

Room to Improve

  • 🐛 Inconsistent step/distance tracking
  • 🐛 Sleep tracking issues
  • 🐛 Medication tracking limitations
Blood Oxygen App#2

Blood Oxygen App by AboutMe Apps, Inc.

SpO2 Level Monitor・Heart Rate
Strong Contender
🏥 Medical
4.6😞(31K ratings)
FreeIn-App Purchases
#22in Medical
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Monitor your blood oxygen level and heart rate effortlessly with our app and sync your Apple Watch for alerts about low levels. Easily track and log vital signs, take oxygen tests, estimate heart rate with the camera, and practice box breathing for calm—all in one app. Download now for free and stay informed about your cardiovascular health.

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#3

Blood Oxygen Level by Enrique Villahermosa Juara

Record pulse and oxygen level
Worth Considering
🏥 Medical
4.3😞(1.8K ratings)
FreeAds
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Track your pulse and blood oxygen levels daily with ease using this app. Simply record your measurements and view your statistics over time. Get started now to monitor your health more effectively!

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 For Apple Watch apps to explore

4
Blood Oxygen App- Watch
Blood Oxygen App- Watch
Blood Oxygen App- Watch
Log & track pulse o2 levels
Free

Track and monitor your blood oxygen levels with ease using this app on your smartwatch. Stay informed about your health on the go. Download now for peace of mind.

🏥 Medical
(2)
5
Blood Oxygen | O2 Monitor app+
Blood Oxygen | O2 Monitor app+
Blood Oxygen | O2 Monitor app+
Saturation Level + Pulse Rate
Free

Monitor your oxygen saturation levels and pulse rate daily with this essential tracker app. Keep track of your health, set normal levels, sync data to Apple Health, and enjoy features like multi-profile support and daily reminders. Stay informed and stay healthy!

🏥 Medical
(379)
6
Apple Fitness
Apple Fitness
Apple Fitness
Fitness and Fitness+
Free

"Transform your fitness journey with our comprehensive Health and Fitness app. Track your workouts, set goals, and engage in friendly competitions with friends. Subscribe for access to thousands of weekly workouts, meditations, and personalized plans to keep you active and mindful."

💪 Health & Fitness
(11K)
7
Blood Pressure -health monitor
Blood Pressure -health monitor
Blood Pressure -health monitor
BP Pulse Log Heart & Tracker
Free

Track and monitor your blood pressure, pulse, and heart health with this user-friendly app. Stay informed about your cardiovascular health and make proactive choices to maintain a healthy lifestyle. Download now and take control of your well-being.

💪 Health & Fitness
(173)
8
Welltory: Health, Heart Rate
Welltory: Health, Heart Rate
Welltory: Health, Heart Rate
Stress, Sleep, BP, O2 Monitor
Free

Monitor heart rate, stress level, and blood pressure with this app designed to help you track and improve your overall well-being. Take control of your health today with real-time data and personalized insights. Download now to start your wellness journey!

💪 Health & Fitness
(129K)
9
Heart Analyzer: Pulse Tracker
Heart Analyzer: Pulse Tracker
Heart Analyzer: Pulse Tracker
Watch Health & Cardio Metrics
Free

Track your heart rate, analyze your pulse, and monitor your overall health with real-time updates. Stay on top of your well-being with personalized insights and trends to help you achieve your fitness goals effortlessly.

💪 Health & Fitness
(22K)
10
Heart Rate Monitor - Pulse BPM
Heart Rate Monitor - Pulse BPM
Heart Rate Monitor - Pulse BPM
Pulse: Step,Health HR&Oximeter
Free

Track your heart rate with ease using Pulse BPM. Monitor your pulse in real-time, keep track of your health, and stay on top of your fitness goals. Download now and take control of your heart health!

💪 Health & Fitness
(128K)
11
Tension artérielle SmartBP App
Tension artérielle SmartBP App
Tension artérielle SmartBP App
Smart BP Heart Monitor Log App
Free

Track and monitor your blood pressure effortlessly with an intuitive app that records readings, provides trends, and offers insights for better health management. Take control of your well-being today - download the app now!

🏥 Medical
(3.6K)
12
iCardiac: Heart Rate Monitor
iCardiac: Heart Rate Monitor
iCardiac: Heart Rate Monitor
Heart Rate, Blood Pressure App
Free

Monitor and track your heart health with an innovative app that provides precise heart rate monitoring, blood pressure tracking, and personalized insights for optimizing your cardiovascular well-being. Download now for a healthier heart and a fulfilling life.

💪 Health & Fitness
(627)
13
InPulse - Heart Rate Monitor
InPulse - Heart Rate Monitor
InPulse - Heart Rate Monitor
Log Blood Pressure & Oxygen
Free

Monitor your heart rate and log blood pressure easily with this application. Track your health metrics and stay informed about your cardiovascular well-being. Download now for a comprehensive view of your heart health.

💪 Health & Fitness
(166K)
14
Oximeter - Track Oxygen SpO2
Oximeter - Track Oxygen SpO2
Oximeter - Track Oxygen SpO2
Blood O2 Monitor Tracker
Free

"Monitor and track your Oxygen Saturation levels with detailed analytics and daily care guides using our personal health management app. Sync data with Apple Health, export to PDF, and enjoy ad-free experience. Contact us for more information or visit our Privacy Policy and Terms and Conditions for details."

💪 Health & Fitness
(466)
15
Oximeter Tracker Pulse Measure
Oximeter Tracker Pulse Measure
Oximeter Tracker Pulse Measure
O2, pulse calculator: Tracker
Free

Track and monitor your blood oxygen levels easily with this app. Record data, track symptoms, view history, create multiple profiles, and sync with Health Kit for pulse and oxygen information. Remember, it's not a medical device, consult a doctor for accurate readings. Start taking control of your oxygen levels today!

🏥 Medical
(28)
16
Stress Monitor for Watch
Stress Monitor for Watch
Stress Monitor for Watch
HRV Tracker & Health Insights
Free

Monitor your stress levels and overall health with this innovative watch application. Track your stress, heart rate, and activities to improve your well-being. Try it now for a healthier you!

💪 Health & Fitness
(8.8K)
17
O₂ Buddy: Blood Oxygen
O₂ Buddy: Blood Oxygen
O₂ Buddy: Blood Oxygen
SpO2 Levels ar A Glance
$0.99

View your blood oxygen readings in real-time, with instant data syncing from HealthKit, and track your daily averages to better understand your wellness trends. Download now to stay on top of your health and wellness.

💪 Health & Fitness
(41)
18
Blood Oxygen App+
Blood Oxygen App+
Blood Oxygen App+
Heart Rate Monitor Diary
Free

Track and monitor your blood oxygen level and heart rate with a modern and user-friendly app. Easily log your measurements, access recent data, and export information. Remember, this app is not a substitute for professional medical advice.

🏥 Medical
(471)
19
Pulse Plus: Heart Rate Monitor
Pulse Plus: Heart Rate Monitor
Pulse Plus: Heart Rate Monitor
Blood Pressure・Oxygen Tracker
Free

Track your heart rate and blood pressure with ease using Pulse Plus. Monitor your health trends and stay on top of your well-being. Download now for a healthier you!

💪 Health & Fitness
(3.6K)
20
Cardiio: Heart Rate Monitor
Cardiio: Heart Rate Monitor
Cardiio: Heart Rate Monitor
HR checker & beat analyzer
Free

Cardiio is a convenient heart rate monitoring application that allows users to easily check their heart rate using just their phone's camera. Stay informed about your heart health with this user-friendly and efficient app.

💪 Health & Fitness
(58K)