Best Spo2 Monitor Apps

243+ iOS apps curated and reviewed

3.9 avg rating
17 free apps
Updated November 2026

The best spo2 monitor apps on iPhone average 3.9★ across 243+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.

Compare top Spo2 Monitor Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen Monitor: SpO2Blood Oxygen Monitor: SpO2Free5.0★ (1)NoYesNov 2026
2O2 Buddy: Blood Oxygen SpO2O2 Buddy: Blood Oxygen SpO2Free was $0.994.8★ (140)NoYesNov 2026
3Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (430)NoYesNov 2026
4Sanso: Blood Oxygen SpO2 LogSanso: Blood Oxygen SpO2 LogFree—NoYesOct 2026
5SpO2 WatcherSpO2 Watcher$0.99—NoNoNov 2026
6Heart Rate Pro:HR SpO2 BP TempHeart Rate Pro:HR SpO2 BP TempFree4.5★ (6)NoYesOct 2026
7HR & SpO2 - Companion AppHR & SpO2 - Companion App$0.99—NoNoNov 2026
8SPO2er: Blood Oxygen on WatchSPO2er: Blood Oxygen on Watch$0.994.9★ (10)NoNoOct 2026

Top Picks for Spo2 Monitor

O2 Buddy: Blood Oxygen SpO2#2

O2 Buddy: Blood Oxygen SpO2 by Minorbits LLC

Saturation Levels & Trends
Strong Contender
💪 Health & Fitness
4.8(140 ratings)
FreeIn-App Purchases
O2 Buddy: Blood Oxygen SpO2 screenshot 1
O2 Buddy: Blood Oxygen SpO2 screenshot 2

Easily monitor your blood oxygen levels with real-time data and clear charts. Track daily averages and wellness trends, with instant syncing from HealthKit to your Apple Watch. Your health data remains private and secure on your device.

Blood Oxygen | O2 Monitor app+#3

Blood Oxygen | O2 Monitor app+ by Yana Shestakova

Saturation Level + Pulse Rate
Worth Considering
🏥 Medical
4.6(430 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.

More Spo2 Monitor apps to explore

FAQ about Spo2 Monitor

What are the best spo2 monitor apps for iPhone?
Blood Oxygen Monitor: SpO2 tops our spo2 monitor apps ranking as of November 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Yes — 17 of the top spo2 monitor apps we rank are free to download, including Blood Oxygen Monitor: SpO2 and O2 Buddy: Blood Oxygen SpO2.
Blood Oxygen Monitor: SpO2 has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 243+ spo2 monitor apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.