Best Apps To Check Oxygen Saturation

250+ iOS apps curated and reviewed

4.0 avg rating
19 free apps
Updated October 2026

Blood Oxygen App is the household name in apps to check oxygen saturation, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Apps To Check Oxygen Saturation (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen AppBlood Oxygen AppFree4.6★ (31K)NoYesOct 2026
2Blood Oxygen Level: AnalyzerBlood Oxygen Level: AnalyzerFree3.9★ (191)NoYesOct 2026
3Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoOct 2026
4Blood Oxygen App+Blood Oxygen App+Free4.1★ (474)YesYesSep 2026
5Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (425)NoYesSep 2026
6Blood Oxygen Monitor: SpO2Blood Oxygen Monitor: SpO2Free—NoYesOct 2026
7QuickOxyLogQuickOxyLogFree—NoYesJul 2026
8CardioCamCardioCamFree—YesNoJun 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
#34in 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
  • ❌ Deceptive marketing and false advertising
  • ❌ No way to contact customer support
Blood Oxygen Level: Analyzer#2

Blood Oxygen Level: Analyzer by Svetlana Rabosh

O2, pulse calculator: Tracker
Strong Contender
🏥 Medical
3.9(191 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 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
  • 🐛 Doesn't give accurate readings
  • 🐛 Doesn't sync with devices

More Apps To Check Oxygen Saturation apps to explore

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 October 2026, with a 4.6-star average from 31K App Store ratings, and it's free to download.
Yes — 19 of the top apps to check oxygen saturation we rank are free to download, including Blood Oxygen App and Blood Oxygen Level: Analyzer.
Blood Oxygen App has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 250+ apps to check oxygen saturation on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.