AppCorpus
Market GB

Blood Oxygen | O2 Monitor app+

by Yana Shestakova

iPhone · iPad

Active Last checked 31 Jul 2026

Quick verdict

What it is
Store information collected; independent summary not yet available.
At a glance
  • Free to download
  • In-app purchases

Categories and search queries

Official categories

AppCorpus categories

Key functions

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

Screens

App Store

12 store screenshots

Blood Oxygen | O2 Monitor app+ ipad screenshot 1
Blood Oxygen | O2 Monitor app+ ipad screenshot 2
Blood Oxygen | O2 Monitor app+ ipad screenshot 3
Blood Oxygen | O2 Monitor app+ ipad screenshot 4

Pricing & paywalls

App Store

Shown for US

  • Free to download
  • In-app purchases

Ratings & reviews

App Store

Shown for US

4.6 422 ratings · App Store

  1. 2/5How do I measure my blood oxygen?

    Please tell me if I need to get or buy a blood oxygen test kit or can I measure it this way I have no idea .help me please?thanks

    pattys67 · 31 Jul 2026

  2. 1/5Inaccurate

    The app isn’t accurate at all. The subscription is a scam because you can’t try the app before paying. I verified the results of the pulse with a known good device. The app was off by 20 BPM. The description leads you to believe that it reads the O2. It doesn’t.

    JWH- · 31 Jul 2026

  3. 1/5Adds little value. Just a manual log. That's it

    It just does 3 things: 1. pulls your oxygen and heart rate data from apple health and shows it to you (which you can already do in apple health) 2. Allows you to manually type in heart rate and oxygen data (which you can already do in apple health) 3 allows you to measure heartbeat using the iPhone camera app (which other apps do for free) So in sum. This is a total waste of storage space and no value to me. And it's a $10 subscription! Geez

    yangosteen · 31 Jul 2026

  4. 1/5Garbage

    This is a notebook application, you do not measure anything, including on Apple Watch, you enter the data itself and this data is stored as in a notebook. How did it get a 4.6 rating? Delete.

    SerJ6P3S6P · 31 Jul 2026

  5. 1/5Does not work

    This does not work it will not give you a current oxygen reading

    Oh well jeeper · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

  • Data Not Linked to You — Analytics — Identifiers — Device ID Developer declared
  • Data Not Linked to You — Analytics — Location — Coarse Location Developer declared
  • Data Not Linked to You — Analytics — Usage Data — Product Interaction Developer declared
  • Data Not Linked to You — Identifiers Developer declared
  • Data Not Linked to You — Location Developer declared
  • Data Not Linked to You — Usage Data Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

  • 1.0.0
  • 1.0.1

    Quick hot fixes after first release for better experience: loading screens, measurement speed improve etc. Waiting for your feedback for future updates!

  • 1.1.0

    Big functional update is ready: - Apple Health app's data sync - Apple watch support - Widgets for home screen - Multiple profiles for all your family members

  • 1.1.1

    Languages support added: Spanish and Italian Let us know what language do you need next to add

  • 1.1.10

    Fresh update for iOS 17 compatibility and better user experience.

  • 1.1.2

    Japanese language support and minor bug fixes.

  • 1.1.3

    Minor bug fixes, analytics adjustment and design improvements.

  • 1.1.4

    Small changes in app's appearance and minor bug fixes.

  • 1.1.5

    A couple of small but pleasant changes. And, of course, corrected the bugs.

  • 1.1.6

    New design things, stability improvements and blah-blah-blah. The app gets better and better in general. Leave us stars, comments, reviews - everything that helps to increase the quality!

  • 1.1.7

    Thank you for using our app! Small design changes and minor improvements

  • 1.1.8

    Nothing special to celebrate, but very important to update Hot fixes and minor improvements.

  • 1.1.9

    We did something wrong, now we fix it, so it's bug fixing and stability improvement

  • 1.2.0

    Necessary update to avoid any crash and bugs on the launch of the app. Small design improvements

  • 1.2.1

    Bug fixes and minor improvements. Don't skip, it's important for app work stability

  • 1.2.2

    A few design changes and some unpleasant bug fixes.

  • 1.2.3

    Small updates and internal improvements to enhance the user experience

  • 1.2.4

    Fresh and juicy update for new starts: minor bug fixes, design enhancements and analytics adjustments. All this is to improve your user experience and our future ideas.

  • 1.3.0 · 25 Jun 2025

    You can now precisely edit the date and time of your blood oxygen entries for even more accurate tracking. Small improvement — big difference.

Alternatives

Availability by market

Data quality & evidence

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

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