One program. It learns you.
The sliding window moves sessions when life gets in the way. Coach Intelligence calibrates load. The Goal Arc keeps the long-term goal in sight. No guilt — just forward motion.

A program that lives week by week
The sliding window is Kaiku's adaptive engine: if you skipped a day, Kaiku shifts the rest forward. You don't lose progress, you don't fall behind.
A static Excel plan punishes you for every missed day. Kaiku doesn't. The program adapts to your actual life — based on what happened, not what was planned.
Four signals that trigger an adjustment
The sliding window isn't random. It listens to four data sources: sleep, recovery (HRV and resting heart rate), session report, and calendar. Any one can trigger a change when the signal is clear.
When recovery is slow or sleep is short, Kaiku lowers tomorrow's intensity. When everything is going well, it can add volume. This happens quietly in the background — you get a short reason for the change.
- Kaiku tells you briefly what it changed — not just silently shifting the day.
- The reason names the signal (HRV + sleep) so the adjustment is understandable.
The big arc stays. Only the shape of each day moves.
The sliding window adjusts the micro level: individual days, weekly volume, heart-rate zones. The target date, phase split, and key milestones don't change.
This matters: if you have Berlin Marathon on Sep 28, that day stays put even when single weeks shift around. The big arc carries you, even when one day moves.
Transparency — every adjustment is saved
The sliding window isn't a black box. Every adjustment is logged and you see the timeline: when it happened, which signal triggered it, what changed.
You can understand the shape of your own path in hindsight. If something went sideways, you see why. If everything went well, you see which decisions helped.
- Each adjustment is marked with date and reason — not just a sparkle.
- "Open full history" shows the shape of your whole program over recent months.
Voici comment parcourir tes entraînements
Programme du jour, entraînements passés et calendrier complet sur 12 semaines — tout au même endroit. Le haut de l'onglet Entraînements t'indique où tu en es à l'instant.
La carte Cette semaine montre le statut des 7 jours avec des pastilles : pastille dorée pleine = entraînement prévu, cercle = jour d'entraînement non fait, ✓ = déjà fait, + = entraînement bonus hors programme, gris = jour de repos. Clique sur n'importe quel jour pour ouvrir le calendrier complet du programme sur 12 semaines à cet endroit. La carte Mon objectif en dessous affiche l'entraînement prévu aujourd'hui, prêt à démarrer en un clic. Fais défiler vers le bas pour voir les entraînements passés avec leurs filtres (semaine/mois/tout + discipline) — clique sur l'un d'eux pour voir les séries, la fréquence cardiaque et les calories. Astuce : la barre Voir la progression de l'exercice montre l'évolution d'un exercice donné (par ex. développé couché) sur les semaines et les mois.
The first program that doesn't shame me when I get sick or travel for work. Kaiku just shifts the days, and I slide back in.
Common questions about training
Is Kaiku a real coach?
Kaiku helps with planning, recovery tracking, and program adaptation. For specialized situations (injury, race-specific prep), we recommend a human coach alongside.
What if I don't train every day?
The sliding window adapts — if you skip a day, the next one is rebuilt and the whole program doesn't break. A soft pause activates after three days off.
Can Kaiku build a marathon program?
Yes. The Goal Arc supports endurance goals (5–42 km), strength training (PR-based), and Hyrox-style multi-domain goals.
Is a wearable required?
No. Your phone's own data (iOS HealthKit, Android Health Connect) is enough. Suunto adds 14 days of history and a sharper recovery signal.
Can I turn off the adjustments?
You choose how active Kaiku is: observations only, suggestions to approve, or full adaptation. From settings.
Go deeper
Gym training
Strength, sets and reps, PR registry. Free programming or Kaiku's ready templates.
Home training
Bodyweight programs, no equipment needed. Travel and holiday days covered with the same intelligence.
Coach Intelligence
AI feedback after every workout, calibrates load, recognizes life situations.