O2 Buddy: Blood Oxygen SpO2

Name: O2 Buddy: Blood Oxygen SpO2
Price: 0.99 USD
Rating: 4.5 (43 reviews)
Author: Minorbits LLC

by Minorbits LLC

iPhone

Active Last checked 31 Jul 2026

App Store ↗

Quick verdict

What it is: Store information collected; independent summary not yet available.
At a glance: $0.99
In-app purchases

Categories and search queries

Official categories

Health & Fitness
Lifestyle

AppCorpus categories

Key functions

Function	Availability	Access	Scope	Evidence
In-app purchases	Yes	Limited free	—	Store published

Screens

App Store

6 store screenshots

O2 Buddy: Blood Oxygen SpO2 iphone screenshot 1

O2 Buddy: Blood Oxygen SpO2 iphone screenshot 2

O2 Buddy: Blood Oxygen SpO2 iphone screenshot 3

O2 Buddy: Blood Oxygen SpO2 iphone screenshot 4

Pricing & paywalls

App Store

Price: $0.99
In-app purchases

Last verified 31 Jul 2026

Ratings & reviews

App Store

4.5 43 ratings · App Store

5/5Praise for O2 Buddy
I am a physician and want to offer my sincere praise for this update. Allowing people who suffer issues in which their O2 sat. abruptly drops can be lifesaving, such as near drowning, blood clots to the lung, acute heart failure, pneumonia, severe COVIS 19, exacerbation of chronic lung disease, severe sleep apnea and altitude sickness. I am especially pleased that the author of this program only charges $0.99 for this app, which makes it affordable for almost everyone. Again, my sincere congratulations for this noble and worthy achievement.

Participant2025 · 31 Jul 2026
5/5Great job!!
Short and sweet, clear chart showing your readings on both your phone and watch. Nice to finally be able to utilize this feature of the watch. Hope you keep updating and adding features.

cejmcq · 31 Jul 2026
5/5Blue Blood
This app is easy to use and beneficial for tracking your daily health. It is easy to set up and send notifications of the information to your phone. I like how everything flows and is easy to setup.

TatorTotScott · 31 Jul 2026
4/5Confused about O2 updates.
No idea why it works during the daytime, but will not update late at night or after midnight, early morning even if I take a manual reading, I still need to consult my iPhone for the O2 number.

johnpfeif42 · 31 Jul 2026
2/5O2 Buddy: Used to be more useful
I really miss the old on‑watch graph view. The current list of readings is much less useful at a glance, and only showing yesterday’s average makes today’s data feel incomplete. The mini trend graph on the watch was what made O2 Buddy stand out—please consider bringing a simple graph view back for recent readings and today’s evolving average.

wsvtone · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

Data Not Collected Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

1.0
1.01
- Updated onboarding for new users. - New Contact page for support and feedback
1.02
Fixed UI and sync issues.
1.3
- Added widget support - Added setting for 12/24 hour clock - Improved sync - Fixed UI bug if reading is lower than chart
1.4 · 9 Jun 2026
- You can now get low blood oxygen notification from the app.
1.5 · 30 Jul 2026
Version 1.5 is the biggest update yet - a whole new way to see your blood oxygen over time! TRENDS ON THE MAIN SCREEN The chart at the top has been rebuilt. Switch between 24 hours, 7 days, 30 days, and 90 days, and see each day's full range along with its average. O₂ Buddy remembers whichever range you used last. NEW: DAY VS NIGHT Tap the moon to compare your daytime readings against your overnight ones. If you wear your watch to sleep, try this one first. RICHER READING DETAILS Tap any reading to see where it fell that day, how it compares to readings taken around the same time on other days, and whether it's normal, below normal, or low. NEW TREND WIDGET A new Home Screen widget shows your 7-day trend at a glance, in small and medium sizes. NEW WATCH COMPLICATIONS • A color-coded gauge ring for circular slots • A 7-day trend sparkline for rectangular slots • Older readings now dim, so you always know when you're looking at stale data FASTER, MORE RELIABLE SYNC New readings reach your watch and complications faster, and complication updates now keep working reliably all day long. A FRESH LOOK Onboarding has been redesigned, and you can now set the app to Light, Dark, or Automatic in Settings. Plus a tip jar for anyone who'd like to support development - entirely optional, and it unlocks nothing. Thanks for using O₂ Buddy!

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Alternatives

Stork Stats — Same category + similar ratings

Availability by market

Data quality & evidence

Page completeness: Live store listing
Last verified: 31 Jul 2026
Sources: App Store

Independent summary has not been published yet.

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GET /api/v3/apps/6751239297

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