# O2 Buddy: Blood Oxygen SpO2 — user reviews > 21 indexed App Store user reviews of O2 Buddy by Minorbits LLC, rated 4.60/5 from 46 ratings. - Source: https://appshunter.io/ios/app/o2-buddy-blood-oxygen-spo2/id6751239297/reviews - App overview in markdown: https://appshunter.io/ios/app/o2-buddy-blood-oxygen-spo2/id6751239297.md - Rating breakdown: 5★ 37 · 4★ 4 · 3★ 2 · 2★ 0 · 1★ 3 ## Newest reviews (2 of 21) ### 5/5 — Amazing *2025-09-07* Truly awesome idea to create an app that allows users to view their blood oxygen levels again on your Apple Watch!!! ### 5/5 — O2 Readings On the Watch!! *2025-08-31* Apple gave us blood oxygen readings on the iPhone only (for those of us in the US). Not anymore! When installing the app on the Apple Watch, it pulls O2 data directly from the health app and displays the recent data on your watch! ## Most critical reviews (10 lowest-rated) ### 1/5 — Doesn’t list which watches it works with. *2026-04-29* I have a SE2 and an iPhone13. The app says it works with the iPhone, but does not say that it doesn’t work with the SE2 watch. **Developer response:** Sorry about that. The SE2 doesn’t have the blood oxygen sensor. Sadly Apple doesn’t let me reject watches. You may still be able to request a refund from Apple. ### 1/5 — Waste *2026-01-30* Waste of money **Developer response:** So sorry you feel that way. Did you have an issue with the app? ### 1/5 — Not for Canada 😢 *2025-09-28* Tried with my Canadian. IOS doesn’t work **Developer response:** Should work anywhere. But not as needed for single measurement outside of the US since those watches can still display the O2 readings. ### 1/5 — Update Needed ? *2025-09-24* I have an iPhone 15+ with IOS 26 Final release. App Won’t get past the check Settings page. No info sent to Health app. Only info from February 2024!🤷🏻‍♂️ **Developer response:** Sorry you’re having issues with the app. I do have an update coming soon. ### 2/5 — O2 Buddy: Used to be more useful *2026-03-12* 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. ### 3/5 — Meh *2025-12-19* It works…kind of. I mean, my O2 readings show up on the watch, but not until I go to the phone and receive the notice about a new reading, so I might as well just use the phone. **Developer response:** Sadly the app on the phone will need launched every so often. But it should need to be every single time unless you full close out the iPhone app each time. ### 3/5 — Installed and testing *2025-11-25* Soon I will post my opinions about this app to help and to contribute with anyone that wish meet it. For now it’s installed and showing only my O2 measurements from four days ago. ### 4/5 — Confused about O2 updates. *2025-11-30* 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. **Developer response:** Sorry you’re having issue with the app. You can reach out through support in the app I’ll try to help figure out what’s going on. ### 4/5 — SemiPraise for O2 Buddy *2025-10-13* Works well AFTER the built-in Oxygen app has taken its reading. I can’t figure out how to have this O2 Buddy Complication trigger the reading to occur. Thank you. ### 5/5 — Blue Blood *2026-05-13* 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. ## Most praised reviews (9 highest-rated) ### 5/5 — Thank you *2026-04-23* Just helped someone setup their first Apple Watch. They are 79. You made my day. I don’t own a watch, I bought the app to show my appreciation. ### 5/5 — Works great!! *2025-12-28* Very responsive. Nice work around not needing your iPhone ### 5/5 — BUILT BY THE GENIUS! *2025-11-21* PRICELESS!! BRAVO!!! ### 5/5 — Excellent app *2025-09-28* Just what I was looking for. Well done Sir. I created a shortcut and mapped it to my Apple Watch action button so I did not have to use one of the complications on the watch face. ### 5/5 — Perfect *2025-09-23* Awesome app for those who want to see O2 data and not get overwhelmed ### 5/5 — Finally! O2 on my wrist! *2025-09-14* Great app. Gives me back O2 readings on my wrist. Well done! ### 5/5 — Great app! *2025-09-13* This app fills the big void left by Apple. Nice and easy to read interface. Highly recommended! ### 5/5 — Praise for O2 Buddy *2025-09-12* 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. ### 5/5 — Great job!! *2025-09-09* 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. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*