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.
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!



