Best Oxygen Level Checking Apps

247+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated September 2026

Whether you're new to oxygen level checking or looking for an upgrade, our curated collection of 247+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Oxygen Level Checking Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen Level: AnalyzerBlood Oxygen Level: AnalyzerFree3.9★ (190)NoYesSep 2026
2Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (423)NoYesSep 2026
3Blood Oxygen App+Blood Oxygen App+Free4.1★ (474)YesYesAug 2026
4Blood Oxygen AppBlood Oxygen AppFree4.6★ (31K)NoYesSep 2026
5O2 Buddy: Blood Oxygen SpO2O2 Buddy: Blood Oxygen SpO2$0.994.6★ (46)NoYesSep 2026
6Cyl DurationCyl DurationFree4.5★ (8)NoNoMay 2026
7Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoSep 2026
8Inogen Connect Portable OxygenInogen Connect Portable OxygenFree3.6★ (266)NoNoSep 2026

Top Picks for Oxygen Level Checking

Blood Oxygen Level: Analyzer#1

Blood Oxygen Level: Analyzer by Svetlana Rabosh

O2, pulse calculator: Tracker
Editor's Choice
🏥 Medical
3.9(190 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 | O2 Monitor app+#2

Blood Oxygen | O2 Monitor app+ by Yana Shestakova

Saturation Level + Pulse Rate
Strong Contender
🏥 Medical
4.6(423 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 App+#3

Blood Oxygen App+ by Kishan Panchotiya

Heart Rate Monitor Diary
Worth Considering
🏥 Medical
4.1😞(474 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
  • 🐛 Inaccurate heart rate readings (20-40 bpm off)
  • 📖 Lacks instructions or user guidance
  • ⏸️ Won't allow multiple readings per day
  • 🎬 Excessive ads that prevent app return
  • 🔐 Access/restoration issues for paid users
  • 😕 Misleading app description and functionality

More Oxygen Level Checking apps to explore

FAQ about Oxygen Level Checking

What are the best oxygen level checking apps for iPhone?
Blood Oxygen Level: Analyzer tops our oxygen level checking apps ranking as of September 2026, with a 3.9-star average from 190 App Store ratings, and it's free to download.
Yes — 18 of the top oxygen level checking apps we rank are free to download, including Blood Oxygen Level: Analyzer and Blood Oxygen | O2 Monitor app+.
Blood Oxygen Level: Analyzer has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 247+ oxygen level checking apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app helps you track your blood oxygen saturation levels by allowing you to manually enter readings from your oximeter. It also enables you to log additional symptoms you may be experiencing and view a history of your saturation changes over time. The app can synchronize with HealthKit to import pulse and blood oxygen data.
Key features include tracking your oxygen saturation level, logging additional symptoms for better analysis, viewing a history of your saturation changes, creating multiple profiles for family members, and synchronizing data with HealthKit for pulse and blood oxygen information.