Blood Oxygen App

• Blood oxygen level: saturation — $9.99
• Heart rate & pulse now monitor — $19.99
• Oxygen level for Apple Watch — $24.99
• Pulse oximeter for Apple Watch — $9.99

Last verified 30 Aug 2026

4.6 31174 ratings · App Store

1. 2/5I wanted to like it.

   I need to have keep a consistent eye on my blood oxygen for medical reasons. I got an Apple Watch 8 series with the excitement of being able to do so whenever/where ever. I wanted to have a face widget that just showed it since the pre installed app had to be pushed and it would measure and show you. This I can just glance or that was the hope. It worked at first but has been stuck at 95% for months. I’ve given up with the app from this company though because I purchased the bundle with the temperature and it never worked on the watch despite following all the directions and even emailing support. Nothing works quite right and now I’m disappointed that I spent money on the apps. I want to like them but the app creators need to fix quite a few bugs.

   Ashwepoo · 30 Aug 2026

2. 1/5Alert Function doesn’t have notifications with sound /vibrations

   Thought that this would cover Apples gap of not being able to get immediate notifications on low blood oxygen. It did provide a “banner “ notification - but would not provide immediate notification for actions. Need to have a sound or vibrating alerts on IPhone or IWatch … like with all the advertising that hits our watches. I use a CPAP and supplemental O2. However, when I fall asleep without putting my medical equipment on my blood O2 can drop to 78%. On a recent plane trip I fell asleep and was between 84 to 78% oxygen for an extended timeframe. I needed an oxygen alarm to wake me up. Tried to notify the supplier of this app to see if I was doing something wrong - but it was tough to get information back about this item. I have cancelled the subscription. If this app can provide the required alarm / alert … it would be worth the $25 cost No response … garage App … deleted already

   TWEAngola · 30 Aug 2026

3. 1/5Complete disappointment

   First of all, this app has absolutely no trial. So either you shall out 25 bucks to see if it works, or you don’t get to see if it works. Disclaimer: it doesn’t work. First of all, neither the watch complication nor the phone widget ever update. Even when you go in and manually, enter everything, they do not update. Secondly, contrary to its claim, it does not do anything automatically. The reason that I rolled the dye and shell out the 25 bucks just to find out that this app is worth about zero bucks, was because I needed something that would monitor my SaO2. this app does not do that. In fact, it is a little more than a place to record your data after you take it yourself manually, that also includes a complication and a widget that do not work.

   Old Man Dancing · 30 Aug 2026

4. 1/5Deceptive and no way to communicate directly!

   First off the icon is almost identical to the actual Apple app icon. I was trying to set up my new watch that I had just purchased. I clicked on this app thinking I was getting the Apple one. Once I realize it was not the apple application, I went in and canceled my subscription. However, it cancels in July 2025. This was done with then too maybe three days from purchase. There’s really no way to contact them. I have now left two messages on the review and I still have not heard anything. So $25 down the drain. July 24 update I did contact the app via email and their response was they didn’t have the technical ability to give a refund. I find it amazing that they have the technical ability to do all of these so-called wonderful things with thin the app itself, but can’t give a refund. Stay far far far away from this app.

   Smithalite · 30 Aug 2026

5. 1/5did NOT work

   Ok I never write reviews ever but I had to for this money grab. I paid for a year premium, only to find that the app does NOT work as advertised and does not work on my watch either. It just basically gives you a survey to fill out and it tests your pulse using the camera flash? And based on your survey and the pulse it tells you if your oxygen levels may be normal or not. This is nothing like advertised. I could’ve googled the results in this case. And the app is not compatible with Apple Watch, it’s just an interface where you can plug in answers for the survey as well! Please, what is this! Please refund my $25!! I literally make less than 15 dollars an hour!! I got this app out of desperation because I have asthma and got a low heart rate notification so I wanted to check my blood oxygen levels and this was NOT it!!!!

   elyon101 · 30 Aug 2026

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