Best Oxygen Level Monitor Apps

244+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated November 2026

Looking for free oxygen level monitor apps? 20 of our 244+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Oxygen Level Monitor Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (428)NoYesOct 2026
2Blood Oxygen Level: AnalyzerBlood Oxygen Level: AnalyzerFree3.9★ (193)NoYesOct 2026
3Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoNov 2026
4Blood Oxygen Monitor: SpO2Blood Oxygen Monitor: SpO2Free—NoYesNov 2026
5Blood Oxygen App- WatchBlood Oxygen App- WatchFree4.2★ (703)NoYesOct 2026
6Blood Oxygen App+Blood Oxygen App+Free4.1★ (474)YesYesOct 2026
7Blood Oxygen Monitor - OxyByteBlood Oxygen Monitor - OxyByteFree3.9★ (9)YesYesOct 2026
8Heartify: Heart Health MonitorHeartify: Heart Health MonitorFree4.7★ (119K)NoYesNov 2026

Top Picks for Oxygen Level Monitor

Blood Oxygen | O2 Monitor app+#1

Blood Oxygen | O2 Monitor app+ by Yana Shestakova

Saturation Level + Pulse Rate
Editor's Choice
🏥 Medical
4.6(428 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: Analyzer#2

Blood Oxygen Level: Analyzer by Svetlana Rabosh

O2, pulse calculator: Tracker
Strong Contender
🏥 Medical
3.9(193 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 Oxygen Level Monitor apps to explore

FAQ about Oxygen Level Monitor

What are the best oxygen level monitor apps for iPhone?
Blood Oxygen | O2 Monitor app+ tops our oxygen level monitor apps ranking as of November 2026, with a 4.6-star average from 428 App Store ratings, and it's free to download.
Yes — 20 of the top oxygen level monitor apps we rank are free to download, including Blood Oxygen | O2 Monitor app+ and Blood Oxygen Level: Analyzer.
Blood Oxygen | O2 Monitor app+ has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 244+ oxygen level monitor apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.