App.lactrace.com - LacTrace brings context to your lactate measurements

Lactate data without context has limited value

If you’re doing any lactate testing (even irregular, field-based, non-lab), you already know the problem:

  • Measurements live in notes, photos, spreadsheets
  • No clean link to actual workouts
  • Hard to see trends unless you test like a lab rat

LacTrace is trying to address problem and the core idea is simple:
Store lactate measurements as first-class data and attach them directly to training sessions.

What it does today:

  • Log lactate measurements (mobile-friendly, field use)
  • Attach measurements to real workouts
  • Build step tests when you want
  • View lactate vs pace / effort over time
  • Pulls activity data directly from intervals.icu

What it’s not:

  • Not a black-box “AI threshold detector”
  • Not a replacement for intervals.icu
  • Not opinionated about protocols

I’ve opened it up with early access (3 months free) for anyone who wants to kick the tires and give technical feedback.

:backhand_index_pointing_right: https://app.lactrace.com
Coupon: FREE-3-MONTHS-EARLY-BIRD (limited to 100 persons)

Important! Read User Guide to get a better overview of the functionality

Any feedback or questions welcome!


2 Likes

Added a small video guide on how to add traces (lactate measurements) to existing activities.

Added support for sharing your data with other users of the platform. Coaches can be given write access so they can manage lactate samples and step test creation.

Added support for visualizing intensity distribution. In a matrix view (including lactate measurements in the skyline). Wrist HR on the activity 9th of January..


And on the activity detail page: