Know what to train — and why.
You're busy. You don't have time to program your own training. LebenKraft is your AI strength coach — it tells you exactly what to do today, adapts to how you recover, and explains every call in plain language. You just show up.
Free to start · 14-day Pro trial · Cancel anytime
The Daily Loop
- 1
Review
Your Daily Briefing — today’s session, ready
- 2
Train
Focused mode. Log a set in one tap.
- 3
Reflect
60-second check-in on how it went
- 4
Adapt
Tomorrow’s plan recalculates for you
Guessing is what makes you quit.
You've lifted before. You know it works. But between a job, a family, and a full life, who has time to figure out sets, reps, and when to push? Most apps hand you a spreadsheet and walk away — so every session becomes a decision, and the decisions wear you down.
We make the call — and show our work.
LebenKraft's engine decides your next move from what you actually did and how you recovered. The AI never guesses — it explains the decision in plain language: Recommendation → Reason → Next action. No black box. No hype. Just the next right move.
How it works
Answer a few questions and you get a plan built around your goal, schedule, and equipment. Then every day it does three things:
It reads your recovery
Energy, sleep, soreness, and joints become a single, honest readiness score.
A rule engine decides
Deterministic progression logic — never a black box — chooses your load and volume.
The AI explains why
Every recommendation comes with its reasoning, so you can trust it — or question it.
Everything, without the guesswork
- A Daily Briefing that tells you exactly what to do
- Adaptive progression from your real performance
- Recovery-aware — it holds you back when you need it
- Offline Training Mode that never loses a set
- A coach you can ask “why?” any time
- Weekly & monthly reviews of your progress
- Works with a full gym or a pair of dumbbells
- In and out in 30–40 minutes
Simple pricing
One plan. Everything included. Cancel anytime.
Questions
How much time does it take?
Most sessions run 30–40 minutes, a few days a week — built around the schedule you give us. The whole point is to fit training into a busy life, not the other way around.
Does the AI decide my workouts?
No. A deterministic engine decides your progression and recovery. The AI only explains the decision in plain language — it never invents your training.
Do I need a coach or a gym?
Neither. Tell us your goal, schedule, and equipment; LebenKraft builds and adapts the plan. It works with a full gym or a pair of dumbbells at home.
What if I miss a session?
The engine reschedules intelligently — shifting or skipping without cramming — and tomorrow’s plan self-corrects. Life happens; the plan bends.
What does it cost, and can I cancel?
Pro is $12.99/month or $129.90/year (two months free), with a 14-day free trial. Cancel anytime — no contracts.