PeiPei learns your complete training history, adapts plans in real-time, and uncovers weight-performance insights even elite coaches miss.
Features
Five capabilities that set PeiPei apart from every training app you've tried.
COACH MEMORY
Every run, every race, every setback — your coach remembers it all. Ask about that tempo run 6 months ago or why your marathon pace dipped in week 12. No repeating yourself. No starting over.
WEIGHT × PERFORMANCE
Track body composition alongside training load and race times. PeiPei finds the correlations — maybe you PR when you're 2 kg lighter, or your easy pace improves at a specific weight range. Data, not guesswork.
SMART PLANS
Daniels VDOT zones, Pfitzinger periodization, 80/20 polarization, Hansons cumulative fatigue — blended into a plan that fits YOUR fitness.
GARMIN SYNC
Heart rate, running dynamics, cadence, ground contact — synced instantly. Your AI coach sees everything your watch records.
REAL-TIME ADAPTATION
Missed a workout? Feeling fatigued? Crushed your intervals? Your plan adjusts instantly. No rigid schedules, no guilt.
How It Works
Link your Garmin or upload training history. PeiPei analyzes your entire running background in seconds.
Pick a race distance and target time. PeiPei calculates your VDOT, training zones, and builds your plan.
Get daily guidance, ask questions anytime, and watch your plan adapt as you improve.
Testimonials
“I went from 3:45 to 3:18 in two training cycles. PeiPei caught overtraining patterns I never would have noticed on my own.”
Sarah C.
BQ qualifier, 34 · Chicago
“The weight-performance correlation was a game-changer. I finally understood why some training blocks clicked and others didn't.”
Marcus W.
Ultra runner, 38 · Denver
“Having a coach that remembers my hip injury and adjusts my plan accordingly? That's something my $200/mo human coach couldn't do consistently.”
Priya S.
First marathon, 29 · Austin
Pricing
All plans include Garmin sync, training log and calendar, and weight tracking. Higher tiers unlock deeper coaching and analytics.
5 AI coach credits per month
50 AI coach credits per month
Unlimited AI credits
No contracts. Cancel anytime.
Join runners who train with an AI coach that knows their history, adapts their plan, and never takes a day off.
Start Training Free5 free AI credits · No credit card required