Best Free Oxygen Level Apps

200+ iOS apps curated and reviewed

4.1 avg rating
19 free apps
Updated September 2026

Looking for free free oxygen level apps? 19 of our 200+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Free Oxygen Level Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoSep 2026
2Blood Oxygen Level: AnalyzerBlood Oxygen Level: AnalyzerFree3.9★ (190)NoYesSep 2026
3Blood Oxygen AppBlood Oxygen AppFree4.6★ (31K)NoYesSep 2026
4Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (423)NoYesSep 2026
5Oximeter - Track Oxygen SpO2Oximeter - Track Oxygen SpO2Free4.5★ (466)NoYesSep 2026
6OxiToneOxiToneFree2.0★ (1)NoNoAug 2026
7Breath - Increase Blood OxygenBreath - Increase Blood OxygenFreeYesYesSep 2026
8Blood Oxygen App+Blood Oxygen App+Free4.1★ (474)YesYesAug 2026

Top Picks for Free Oxygen Level

Blood Oxygen Level#1

Blood Oxygen Level by Enrique Villahermosa Juara

Record pulse and oxygen level
Editor's Choice
🏥 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
Blood Oxygen Level: Analyzer#2

Blood Oxygen Level: Analyzer by Svetlana Rabosh

O2, pulse calculator: Tracker
Strong Contender
🏥 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 App#3

Blood Oxygen App by AboutMe Apps, Inc.

SpO2 Level Monitor・Heart Rate
Worth Considering
🏥 Medical
4.6😞(31K ratings)
FreeIn-App Purchases
#25in 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

More Free Oxygen Level apps to explore

FAQ about Free Oxygen Level

What are the best free oxygen level apps for iPhone?
Blood Oxygen Level tops our free oxygen level apps ranking as of September 2026, with a 4.3-star average from 2K App Store ratings, and it's free to download.
Blood Oxygen Level shows ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 200+ free oxygen level apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to record your pulse and blood oxygen level measurements daily. It provides a simple way to log this data and view your health statistics over time through clear visualizations.
The app requires an external device, such as a pulse oximeter or a smartwatch, to record your blood oxygen level and heart rate. You will need to use this external device to take your measurements and then manually enter them into the app.