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Heart Analyzer today reached version 8.3, bringing some notable improvements to the popular heart health app including new complications and customizations.

heart-analyzer-watch.jpg

Top of the list for Apple Watch Series 6 owners will be the new Blood Oxygen Saturation complication, which lets you track the SPO2 metric over the past week with a glance of your watch face.

There's also a new complication that shows the chart for today and yesterday's heart rate, and a new toggle in workouts that lets you view heart rate zones by percentages or time in zone.

Meanwhile, on the iPhone app, a new custom scaling feature lets you fix the minimum and maximum values on heart rate day charts for better day-to-day comparisons.

Following version 8's big update earlier this year, the developer has also introduced a new heart rate chart complication, ECG comparisons on the iPhone app, and iOS 14 widgets.

heart-analyzer-copy.jpg

The app never transmits any data from the users ‌iPhone‌, and there are no third party analytics and no ads. Heart Analyzer is a free download for ‌‌iPhone‌‌ on the App Store, and users who wish to support development can unlock small options via in-app purchases. [Direct Link]

Article Link: Heart Analyzer App Gains Blood Oxygen Complication for Apple Watch Series 6
 
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I've been using this app for awhile, it is a great free app.
Interesting. I’m pleasantly surprised this is free, but disappointed if some combination of Apple Watch and iOS apps doesn’t already do most of this this. (I have a S6 watch waiting for Xmas...)

It looks like it’s just a few $2 IAPs that are the revenue generator for the app. Or are there ads as well?
 
Glad to see this app getting attention. I purchased all of the IAPs; the data is fantastic.
The developer has been responsive to feedback as well.
The O2 measurement, like HR, will be much more valuable over a long time scale with large data sets. Heart Analyzer will enable that!
The effect of a few drinks, or consistent exercise, is easy to see in the data. Good motivator!

“Heart Monitor” is another good one - activates the higher-fidelity HR sensor without triggering a “workout.”
 
For me, I primarily see it charting the O2 level at night, and maybe one or two times during the day.

Is that how it is working for everyone else?

I presume it is because I often am moving around and so the O2 sensor can't get a good enough reading. At night though, it will get a lot.
 
Very, very cool that Apple opened up this tech to developers instead of locking it down.
 
I’m not saying this isn’t cool, but if you are not actively suspicious about a potential medical problem, there is absolutely no reason you need to track your blood oxygen saturation. I guess if you want to add it to our ever-growing list of constant monitoring-in-case-anything-ever-happens metrics it’s fun but super irrelevant unless you’re sick with a respiratory illness or airway problem. And if people are thinking COVID, you’ll likely have other symptoms well before your oxygen starts dropping below normal - that’s in the later stages most commonly.

But I ain’t no docta.
 
For me, I primarily see it charting the O2 level at night, and maybe one or two times during the day.

Is that how it is working for everyone else?

I presume it is because I often am moving around and so the O2 sensor can't get a good enough reading. At night though, it will get a lot.
It seems to try every 30 minutes, and only keeps the successful readings.

Most days, I get 10-15 readings added to my data, which is enough for my pulmonologist to see trends, and I trigger it manually if I need to check (severe asthma here).
 
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