[Nerada]

After noticing Apple Health doesn't let you track this data at all (very strange decision on their part) I contemplated building an app... But Excel is easier and serves the same function. Conditional highlighting, charts, trends, it's all there.

[cjensen]

Apple Health tracks the data. It just doesn't provide graphs except for the most common variables. I'm not really sure why no one makes a graphing app that works off HealthKit data

[bigiain]

<cynical view> Because that's totally a thing Apple will release (or bundle into an existing app) as soon as it gains any popularity...

<sightly less cynical view> There's been persistent rumours for a few years now that Apple are working on blood glucose sensing for Apple Watch. If those rumours are right (and a big part of me really hopes they are) then that'd likely come with built in apps that destroy every blood glucose related 3rd party app.

Edit: I just noticed the original post wasn't specifically blood _glucose_ related. My own "blood test" requirements made me jump to an erroneous conclusion...

[KMnO4]

A while ago I was looking for this and found “Heart Reports”. Despite the name, it can make graphs from several sources that it pulls from HealthKit.

https://apps.apple.com/ca/app/heart-reports/id1448243870

No affiliation with the app, just a user.

[Nerada]

Blood test results? I couldn't find anywhere to input the data manually. I track everything else there, like blood pressure, but serum iron, ferritin? Transferrin? Albumin? Etc. Nothing. Am I blind?

[greggsy]

You can make your own with Charty, which can pull data from HealthKit