Heart Analyzer App Gains Blood Oxygen Complication for Apple Watch Series 6

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
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
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]

Popular Stories

maxresdefault

Apple Shows Off a Key Reason to Upgrade to the iPhone 17

Saturday February 7, 2026 9:26 am PST by
Apple today shared an ad that shows how the upgraded Center Stage front camera on the latest iPhones improves the process of taking a group selfie. "Watch how the new front facing camera on iPhone 17 Pro takes group selfies that automatically expand and rotate as more people come into frame," says Apple. While the ad is focused on the iPhone 17 Pro and iPhone 17 Pro Max, the regular iPhone...
apple wallet drivers license feature iPhone 15 pro

Apple Says These 7 U.S. States Plan to Offer iPhone Driver's Licenses

Monday February 9, 2026 6:24 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...
m5 macbook pro deal

Why You Shouldn't Buy the Next MacBook Pro

Tuesday February 10, 2026 4:27 pm PST by
Apple is planning to launch new MacBook Pro models as soon as early March, but if you can, this is one generation you should skip because there's something much better in the works. We're waiting on 14-inch and 16-inch MacBook Pro models with M5 Pro and M5 Max chips, with few changes other than the processor upgrade. There won't be any tweaks to the design or the display, but later this...
Apple Logo Zoomed

Apple Expected to Launch These 10+ Products Over the Coming Months

Tuesday February 10, 2026 6:33 am PST by
It has been a slow start to 2026 for Apple product launches, with only a new AirTag and a special Apple Watch band released so far. We are still waiting for MacBook Pro models with M5 Pro and M5 Max chips, the iPhone 17e, a lower-cost MacBook with an iPhone chip, long-rumored updates to the Apple TV and HomePod mini, and much more. Apple is expected to release/update the following products...
iOS 26

Apple Releases iOS 26.3 and iPadOS 26.3

Wednesday February 11, 2026 10:07 am PST by
Apple today released iOS 26.3 and iPadOS 26.3, the latest updates to the iOS 26 and iPadOS 26 operating systems that came out in September. The new software comes almost two months after Apple released iOS 26.2 and iPadOS 26.2. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. According to Apple's release notes, ...

Top Rated Comments

Terbetinan Avatar
69 months ago
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.”
Score: 3 Votes (Like | Disagree)
ProfessionalFan Avatar
69 months ago
I've been using this app for awhile, it is a great free app.
Score: 3 Votes (Like | Disagree)
litmag01 Avatar
69 months ago
Wow! That is a lot of medical information. Now let me just plug all this into google to check symptoms then I'll be all set!
Score: 2 Votes (Like | Disagree)
CmdrLaForge Avatar
69 months ago
This sounds great if it works as advertised. Looking forward getting a new Watch myself.
Score: 1 Votes (Like | Disagree)