Your watch tracks the run.
Melde coaches you through the next one.

Structured running plans with personalized HR and pace zones, session types, and a weekly structure built around your goals. Your zones calibrate automatically from your workouts: no lab test, no guessing. Every morning, your coach checks your HRV, sleep, and resting heart rate. When your body says pull back, your coach is already ready with options.

Recovery-Aware Coaching

Every morning, your signal shapes your coaching options. HRV dropped and sleep under six hours? Melde presents options: hold the planned threshold run, shift to Zone 2, or take a recovery day. You decide. After the run, the debrief analyzes what happened. By evening, tomorrow’s coaching already reflects today’s data. Your weekly template stays consistent. Your daily coaching adapts to how your body is actually responding.

Auto-Calibrating Pace Zones

After a solid threshold effort, Melde detects your lactate threshold pace and derives five personalized pace zones: Easy, Aerobic, Tempo, Threshold, VO2max. Your zones update automatically when your fitness improves. No lab test. No manual entry. Just run.

Karvonen HR Zone Caps

Melde calculates your personal HR zone boundaries using the Karvonen formula, which factors in both your resting heart rate and max heart rate for individualized zone precision. Your Zone 2 cap isn’t a generic percentage. It’s computed from your actual physiology. And when your fitness improves, your zones update automatically from your workout data: no manual recalibration.

Cardiac Drift Detection

Melde detects cardiac drift by comparing your heart rate in the first and second half of the run at the same effort. A drift above 5% signals cardiovascular fatigue your legs haven’t felt yet.

Cadence Stability Analysis

When your cadence coefficient of variation crosses 15%, it signals technique breakdown under fatigue. That's an early warning your legs are sending before pace ever drops.

Pace Fade Tracking

How much slower was your last quarter compared to your first? Pace fade reveals whether you went out too hard, hit a fueling wall, or simply ran out of aerobic capacity. Melde computes it automatically and surfaces the fade in your coaching context, so your next readiness assessment accounts for it.

Elevation-Aware Coaching

Melde tracks your elevation gain and vertical ascent rate, giving your coach the context to interpret a hilly effort differently than a flat one. A 10K with 200m of climbing tells a different story than a flat 10K at the same pace, and your coaching reflects that.

Cross-Sport Load Tracking

Run Monday, ride Tuesday, swim Wednesday. Melde computes training impulse (TRIMP) for every session using gender-specific constants, so your weekly load accounts for everything, not just your runs.

Cardiac drift. Cadence variability. Pace fade. Auto-calibrating zones. Melde catches what other apps miss.

Your watch tracks the run. Let Melde coach the next one.

For runners who want structured plans, pace zones that update with your fitness, and coaching that adapts to your body. Not the other way around.

Free during early access. No credit card required.

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