Best O2 Saturation Apps

248+ iOS apps curated and reviewed

4.0 avg rating
16 free apps
Updated August 2026

Finding the right o2 saturation apps can be overwhelming with so many options. We've analyzed 248+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top O2 Saturation Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen AppBlood Oxygen AppFree4.6★ (31K)NoYesAug 2026
2Oximeter - Track Oxygen SpO2Oximeter - Track Oxygen SpO2Free4.5★ (466)NoYesAug 2026
3Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoAug 2026
4Blood Oxygen Level: AnalyzerBlood Oxygen Level: AnalyzerFree3.9★ (190)NoYesAug 2026
5Blood Oxygen App+Blood Oxygen App+Free4.1★ (474)YesYesAug 2026
6Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (423)NoYesAug 2026
7O2 DurationO2 Duration$2.991.0★ (1)NoNoMay 2026
8Saturate – Effective O₂Saturate – Effective O₂Free was $0.99NoNoAug 2026

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
#20in 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😞(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 O2 Saturation apps to explore

4
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
5
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
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
(423)
freemium
7
O2 Duration
O2 Duration
O2 Duration
by Advanced Aviation LLC
$2.99

Calculate the approximate remaining oxygen in portable cylinders. Select your tank size, input current pressure and desired flow rate to see duration in minutes. Features a timer with alerts for low pressure.

Oxygen cylinder duration calculationSupports multiple cylinder sizes (A, B, D, E, G, H, K, M)Input current tank pressure
🔧 Utilities
(1)
paid
8
Saturate – Effective O₂
Saturate – Effective O₂
Saturate – Effective O₂
Oxygen in the air around you
Free
$0.99 | 100% OFF
☀️ Weather
(0)
9
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
10
O2 Buddy: Blood Oxygen SpO2
O2 Buddy: Blood Oxygen SpO2
O2 Buddy: Blood Oxygen SpO2
Saturation Levels & Trends
$0.99

Easily monitor your blood oxygen levels with real-time data and clear charts. Track daily averages and wellness trends, with instant syncing from HealthKit to your Apple Watch. Your health data remains private and secure on your device.

Real-time blood oxygen readingsClear charts and instant dataSyncs with HealthKit
💪 Health & Fitness
(46)
free
11
Cyl Duration
Cyl Duration
Cyl Duration
by Responsive Respiratory, Inc.
Free

Calculates remaining oxygen in a cylinder for ambulatory users. Input device, liter flow, and cylinder size for precise remaining hours and minutes. Provides peace of mind for oxygen users on the go.

Calculate remaining oxygen hours/minutesInput device settingsInput liter flow
🏥 Medical
(8)
free
12
O2 Calculator Companion
O2 Calculator Companion
O2 Calculator Companion
Accurate EMS Oxygen Calculator
$4.99

This app helps EMS professionals quickly estimate oxygen tank duration in real-time. It's designed for field use with a fast, intuitive interface and works offline, eliminating guesswork in critical care scenarios.

Real-time oxygen tank duration estimationSupports multiple tank typesAdjustable PSI and flow rate settings
🏥 Medical
(1)
paid
13
Oxygen Planner
Oxygen Planner
Oxygen Planner
Calculate Total Oxygen Demand
Free

This application helps medical professionals and supply chain managers calculate total oxygen demand for various medical devices. It supports different oxygen sources like cylinders, liquid oxygen, and concentrators, aiding in efficient supply management for hospitals and individual users.

Calculate total oxygen demandSupports various oxygen sourcesWide range of delivery devices
💼 Business
(2)
free
14
Welltory: Stress & Heart Rate
Welltory: Stress & Heart Rate
Welltory: Stress & Heart Rate
HRV, 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
(132K)
freemium
15
OXiM SpO2
OXiM SpO2
OXiM SpO2
by SEASTAR CORPORATION
Free

This app connects to a specific pulse oximeter via Bluetooth to record blood oxygen saturation and pulse rate. It automatically graphs your measurements, aiding in daily health management. View your data in clear graphs and lists for easy tracking.

Bluetooth connectivity to pulse oximeterAutomatic recording of SpO2 and pulse rateData graphing and list view
🏥 Medical
(2)
free
16
Blood Oxygen Monitor - OxyByte
Blood Oxygen Monitor - OxyByte
Blood Oxygen Monitor - OxyByte
SpO2 Pulse Oximeter O2 Level
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
(7)
free with in-app purchases
17
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
18
O3 Easy
O3 Easy
O3 Easy
by MAHLE Aftermarket Italy S.p.A.
Free

Control and monitor your ozone generator remotely. Generate detailed reports of its processes and send them via email as PDF files. This app helps you manage your equipment efficiently.

Remote ozone generator managementProcess monitoringReport generation
📊 Productivity
(0)
free
19
CCRSim
CCRSim
CCRSim
There's safety in repetition
$9.99
⚽ Sports
(0)
20
PacMeta Oxygen Saturation
PacMeta Oxygen Saturation
PacMeta Oxygen Saturation
by Pacific Meta Pte Ltd
Free
📚 Education
(0)

FAQ about O2 Saturation

What are the best o2 saturation apps for iPhone?
Blood Oxygen App tops our o2 saturation apps ranking as of August 2026, with a 4.6-star average from 31K App Store ratings, and it's free to download.
Yes — 16 of the top o2 saturation apps we rank are free to download, including Blood Oxygen App and Oximeter - Track Oxygen SpO2.
Blood Oxygen App has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 248+ o2 saturation apps 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.