Best Free Oximeter Apps

249+ iOS apps curated and reviewed

3.7 avg rating
20 free apps
Updated September 2026

Out of 249+ free oximeter apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Free Oximeter Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen AppBlood Oxygen AppFree4.6★ (31K)NoYesSep 2026
2Oximeter - Track Oxygen SpO2Oximeter - Track Oxygen SpO2Free4.5★ (547)NoYesSep 2026
3Oximeter-HOximeter-HFree3.4★ (8)NoNoAug 2026
4Pulse Oximeter for iPhonePulse Oximeter for iPhoneFreeNoYesSep 2026
5Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoSep 2026
6Apple HealthApple HealthFree3.0★ (8.9K)NoNoSep 2026
7Pulse Plus: Heart Rate MonitorPulse Plus: Heart Rate MonitorFree4.4★ (3.6K)YesYesSep 2026
8Blood Oxygen Level: AnalyzerBlood Oxygen Level: AnalyzerFree3.9★ (190)NoYesSep 2026

Top Picks for Free Oximeter

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
#26in 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
Oximeter-H#3

Oximeter-H by 家福 张

Oximeter
Worth Considering
💪 Health & Fitness
3.4(8 ratings)
Free
Oximeter-H screenshot 1
Oximeter-H screenshot 2
Oximeter-H screenshot 3
Oximeter-H screenshot 4

This app connects to an oximeter via Bluetooth to display blood oxygen levels, heart rate, and other vital metrics. It saves historical data locally and can synchronize measurements with HealthKit for comprehensive health tracking.

More Free Oximeter apps to explore

FAQ about Free Oximeter

What are the best free oximeter apps for iPhone?
Blood Oxygen App tops our free oximeter apps ranking as of September 2026, with a 4.6-star average from 31K App Store ratings, and it's free to download.
Blood Oxygen App has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ free oximeter 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 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.