01
Tell us your goal.
Half marathon in spring, stronger off-season, first competition, or better consistency. You set the target.
KERN_OS_v4.1 // WhatsApp coaching active
Your AI performance team. In WhatsApp.
A weekly training plan built around your goal. Nutrition matched to your sessions. Your schedule handled. Mindset support when motivation dips. AI-powered and supervised by qualified sports-science professionals.
€14.90/month · 7-day free trial · no card required · cancel anytime
01 / How it works
Message in. Plan out.
KERN turns your sport, week, meals, schedule, and training feedback into clear next steps inside WhatsApp.
02
Get your weekly plan.
Training, nutrition, and schedule arrive in WhatsApp, matched to your sport, workload, and available time.
03
Send updates. Get adjustments.
A run screenshot, meal photo, or tired-legs voice note becomes one clear instruction for what to do next.
02 / The difference
Fitness apps sell graphs. KERN gives decisions.
Most apps drown you in metrics and leave the decision to you. KERN filters the noise and tells you what to do, how to eat, and when to rest in plain language.
[+]Technical training adjustments when a session goes too hard, too easy, too late, or does not happen.
[+]Fueling guidance from meal photos and sport context, without pretending to replace clinical nutrition care.
[+]Schedule adaptation around work, weather, fatigue, and real life.
03 / Your AI team
Five specialists. One thread.
The AI team works together on training, nutrition, schedule, and mindset, coordinated through WhatsApp and supervised by qualified sports-science professionals through ongoing review.
KERN
AI OrchestratorConnects your training data to current sports-science practice and routes the right specialist to you.
FRANZ
AI TrainingStructures your weekly plan and adjusts it as you progress, with clear next steps.
LUNA
AI NutritionBuilds meals around your sessions so you are fueled for performance and recovery.
ATLAS
AI SchedulingAdapts the plan to real life, including work, travel, bad sleep, and changing availability.
STOIC
AI MindsetKeeps performance habits visible. This is motivation support, not professional mental-health care.
04 / WhatsApp demo
No dashboard. Just the protocol.
Send a screenshot. Photograph your plate. Voice-note that your legs are dead. KERN replies with the next useful decision, not another chart.
Open in WhatsApp
Kern Sports Lab
your AI team · online
FRANZ · AITraining day: 35 min easy. Go slower than you think you need to. Keep it aerobic.
Finished 10.3 km at 6:27/km. I pushed past the plan.
KERN · AIGood control, but cap tomorrow. Replace intervals with recovery mobility and keep the next hard session protected.
Lunch photo incoming. Enough protein?
LUNA · AIGood base. Add protein next time to support recovery before the next run.
Message KERN like you would message a coach.
05 / Pricing
One plan. Everything included.
Start with full access for 7 days. No card required to begin. Continue only if KERN fits your training life.
06 / Questions
FAQ.
KERN is an AI-powered performance coaching system supervised by qualified sports-science professionals through ongoing review. It supports training decisions but does not replace licensed care.
Start with your WhatsApp messages: goals, workouts, meal photos, screenshots, and schedule constraints you voluntarily share for coaching support.
Yes. There are no fixed contracts or lock-in periods. You can cancel with a simple WhatsApp message.
You get 7 days of KERN access. No card is required to begin. After the trial, the plan is €14.90/month if you decide to continue.
No. KERN supports training and performance decisions. For medical, dietary, psychological, clinical, or therapeutic care, consult a licensed professional.