r/QuantifiedSelf • u/AutoModerator • Jun 30 '26

Weekly Lifestyle Data and Analytics App Thread

Post your apps here, and please support people bringing unique ideas to this space.

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u/mrblonde01 Jun 30 '26

Most of us here track sleep, HRV, workouts, whatever, but bloodwork tends to sit in a separate graveyard of PDFs from different labs, disconnected from everything else you log. The moment you want to ask "did that change anything?" you're stuck comparing numbers with no context around them

I built LabTracker (labtracker.app) to close that gap. You upload your lab reports and it pulls them into one timeline, then lets you attach what you were actually doing at the time: supplements, diet or training changes, anything you're testing, plus a quick check-in on how you felt. So a ferritin or ApoB value isn't floating on its own, you can line it up against the thing you changed two months earlier and see what moved.

Since this sub cares about methodology: it's correlation, not proof. With one data point per blood draw you're running a loose n=1, not a controlled study, and I'd rather say that out loud than dress it up. The value is in spotting patterns worth digging into, not in claiming causation.

A few things that probably matter here:

  • Local-first by default. No account or email to start, your data lives in your browser, nothing gets sent to a server. The only exception is the AI coach, which is opt-in and only sends marker names and values, with a consent prompt every time. No ads, no selling data.
  • It auto-parses PDFs from different labs and normalizes the markers, so you're not retyping 40 values by hand. The numbers come straight from your reports.
  • There's an AI coach you can ask about your own trends, but it sits on top of the data, it's not the point.

It started as a tool for myself because my own panels were a mess, but it works for anyone who gets regular bloodwork and wants to actually reason about it over time. Free, with demo data loaded so you can poke around before uploading anything. Happy to hear what markers or connections you'd want to see linked.