PulseLab is an AI-powered training app for endurance athletes. It reads your sleep, HRV, energy, and training load every morning to calculate a PULSE Score (a 0-100 daily readiness number), then adapts your training plan overnight so you train at the right intensity.

What is the PULSE Score?

The PULSE Score is a daily readiness score from 0 to 100. It combines seven inputs: sleep quality (20%), HRV (20%), energy level (15%), soreness (15%), training load (15%), nutrition (10%), and training streak (5%). Scores above 80 mean you are ready to push hard. Below 50, Coach Zo will ease back your session or insert a rest day.

Coach Zo is PulseLab's AI coaching layer. It adapts your training plan each night based on your PULSE Score, sends proactive fatigue alerts, answers your training questions, and delivers a Monday Briefing every week reviewing the previous week and previewing the next.

Is PulseLab only for triathletes?

No. PulseLab is built for all endurance athletes: triathletes, marathon runners, ultramarathon runners, duathletes, open water swimmers, gravel cyclists, and trail runners.

How does PulseLab differ from TrainingPeaks or Garmin Coach?

TrainingPeaks and Garmin Coach give you a fixed plan. PulseLab's plan changes every night based on how your body actually recovered. If you slept poorly or your HRV dropped, Coach Zo adjusts tomorrow's session before you even wake up.

How much does PulseLab cost?

The Athlete plan is $14.99 per month with a 14-day free trial and no credit card required. The Coach plan is $4.99 per month and supports up to 20 athletes. The first 500 members receive founding pricing locked for life.

When does PulseLab launch?

PulseLab is currently in private beta with a public launch planned for 2026 on iOS and Android. You can join the waitlist now at pulselab.fit.

FeatureMarch 28, 2026

Session comparison

Compare any two or three sessions side by side. Pace, heart rate, TSS, in a single table. See exactly where you improved and where you faded.

By PulseLab · March 28, 2026

Compare any two or three sessions side by side. Pace, heart rate, TSS, distance, elevation, all in a single table. See exactly where you improved and where you faded.

Progress in endurance sport is nonlinear and often invisible session to session. Session comparison makes it concrete. Pick a run from six weeks ago and the same route from today, and the comparison table shows every metric delta so you can see what changed.

The comparison is available from any workout summary screen. Select up to three sessions of the same type and PulseLab builds the side-by-side view. You can also share the comparison table as an image.