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Best Apps To Check Oxygen Saturation

249+ iOS apps curated and reviewed

4.0 avg rating
17 free apps
Updated August 2026

Blood Oxygen App is the household name in apps to check oxygen saturation, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Apps To Check Oxygen Saturation (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen AppBlood Oxygen AppFree4.6★ (31K)NoYesAug 2026
2Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoAug 2026
3Blood Oxygen App+Blood Oxygen App+Free4.1★ (471)YesYesJul 2026
4Кислород в крови: ЗдоровьеКислород в крови: ЗдоровьеFree3.9★ (190)NoYesJul 2026
5Oximeter - Track Oxygen SpO2Oximeter - Track Oxygen SpO2Free4.5★ (466)NoYesAug 2026
6Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (424)NoYesAug 2026
7OxiWear MedicalOxiWear MedicalFree—NoYesJul 2026
8BreatheLinkBreatheLinkFree—NoNoMay 2026

Top Picks for Apps To Check Oxygen 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
#24in 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#2

Blood Oxygen Level by Enrique Villahermosa Juara

Record pulse and oxygen level
Strong Contender
🏥 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
Blood Oxygen App+#3

Blood Oxygen App+ by Kishan Panchotiya

Heart Rate Monitor Diary
Worth Considering
🏥 Medical
4.1😞(471 ratings)
FreeAdsIn-App Purchases
Blood Oxygen App+ screenshot 1
Blood Oxygen App+ screenshot 2
Blood Oxygen App+ screenshot 3

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.

What We Love

  • 💰 Flat one-time price without subscription fatigue
  • ✅ Does exactly what it promises for basic tracking
  • 📊 Simple and straightforward functionality

Room to Improve

  • 🚫 Core measurement functionality doesn't work
  • ❌ Requires manual data entry instead of actual measurement
  • 📱 Not compatible with Apple Watch despite claims

More Apps To Check Oxygen Saturation apps to explore

4
Кислород в крови: Здоровье
Кислород в крови: Здоровье
Кислород в крови: Здоровье
Сатурация и уровень кислорода
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
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
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
(424)
freemium
7
OxiWear Medical
OxiWear Medical
OxiWear Medical
by OXIWEAR, INC.
Free
🏥 Medical
(0)
8
BreatheLink
BreatheLink
BreatheLink
by Breathe, LLC
Free
💪 Health & Fitness
(0)
9
Pulse Oximeter for iPhone
Pulse Oximeter for iPhone
Pulse Oximeter for iPhone
Heart Rate Monitor & Pulse
Free

Track your blood oxygen levels and heart rate with this health monitoring tool. It syncs with health platforms, supports manual entry, and provides clear visual indicators of your readings. Upgrade for unlimited history and detailed analytics.

Blood oxygen level trackingHeart rate monitoringHealth data platform sync
🏥 Medical
(0)
free with in-app purchases
10
Oxyg'App
Oxyg'App
Oxyg'App
PulseOx: Confounding factors
Free
📚 Education
(0)
11
OxyRemote: Oxygen Monitor
OxyRemote: Oxygen Monitor
OxyRemote: Oxygen Monitor
Watch Loved Ones Remotely
Free

Monitor blood oxygen and heart rate remotely using a compatible Bluetooth pulse oximeter. Receive real-time updates and custom alerts for loved ones or personal wellness trends. Track history and share readings with family.

Remote monitoring of blood oxygen and heart rateCustomizable alert ranges and push notificationsShare live readings with up to 5 family members
💪 Health & Fitness
(1)
free with in-app purchases
12
LOOKEE
LOOKEE
LOOKEE
Sleep Oxygen & ECG Tracking
Free
💪 Health & Fitness
(0)
13
BloodOxygenMonitor
BloodOxygenMonitor
BloodOxygenMonitor
blood oxygen monitoring
Free
$0.99 | 100% OFF
💪 Health & Fitness
(0)
14
Heart Rate, Oxygen Monitor
Heart Rate, Oxygen Monitor
Heart Rate, Oxygen Monitor
No Subscription, No Ad's
$1.99

Monitor your heart rate and blood oxygen levels in real-time from your wrist. This app provides dual-screen insights into your cardiovascular well-being without collecting or sharing any personal data. A portion of the one-time purchase supports a UK charity.

Real-time heart rate monitoringBlood oxygen (SpO2) level monitoringDual-screen health insights
💪 Health & Fitness
(0)
paid
15
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
(6)
free with in-app purchases
16
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
17
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
18
Altos: Air analyzer, CO2 Check
Altos: Air analyzer, CO2 Check
Altos: Air analyzer, CO2 Check
Wellness and Productivity App
Free
📊 Productivity
(0)
19
Urban Oxygen
Urban Oxygen
Urban Oxygen
Urbox India
Free
🌟 Lifestyle
(0)
20
Oxi tracker
Oxi tracker
Oxi tracker
by Guangdong Biolight Meditech Co., Ltd.
Free

Monitor blood oxygen levels, pulse rate, and perfusion index in real-time. View waveform and trend charts, ideal for daily health maintenance and sleep analysis.

Real-time blood oxygen waveformSpO2, PR, PI monitoringTrend charts
🏥 Medical
(62)
free

FAQ about Apps To Check Oxygen Saturation

What are the best apps to check oxygen saturation for iPhone?
Blood Oxygen App tops our apps to check oxygen saturation ranking as of August 2026, with a 4.6-star average from 31K App Store ratings, and it's free to download.
Yes — 17 of the top apps to check oxygen saturation we rank are free to download, including Blood Oxygen App and Blood Oxygen Level.
Blood Oxygen App has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ apps to check oxygen saturation 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.