Strength has a plan.
Training plans you can understand, edit, and run with real friends. No black-box programming, no lock-in — a serious tracker for people who like the details.
Free to download · Premium unlocks unlimited plans & managed AI
Everything a serious block needs
Sthenos treats a training block as one plan — progression, exercise choice, and recovery considered together, week by week.
Start from a plan. Change anything.
Download serious templates from the cloud library, then make them yours — swap exercises, move days, adjust volume, add deloads. Good plans should be explored, not just followed.
- Full training blocks: weeks, phases, rest days
- Mesocycle & microcycle structure built in
- Remix without losing the plan's intent
Know why an exercise earns its place.
Every exercise carries its science: target muscles, stimulus-to-fatigue ratio, axial loading, equipment, and smart substitutions — so swapping never breaks the plan.
- Muscle profiles & secondary weights
- SFR and fatigue-cost ratings
- Guides and technique notes
Watch the work add up.
Strength history, volume trends, body metrics, and progress photos — analysis across the whole block, not just a list of past workouts.
- RIR & RPE effort tracking, when you want it
- Volume vs. benchmarks (MEV → MRV)
- Apple Health sync, on your terms
Train with people you actually know.
No feeds, no follower counts, no stranger rankings. Add training partners face to face, share plans with your circle, and compete on the only thing that matters: showing up.
- Private training circles
- Share & remix plans with friends
- Consistency over ego
AI helps. You decide.
Import a messy plan from anywhere, get substitution ideas, or ask why a week is built the way it is. Suggestions support your thinking — nothing rewrites your training behind your back.
- Import plans from text, spreadsheets, PDFs
- Every change is visible and editable
- Bring your own key, or go Premium for managed AI
Most trackers log what you did.
Sthenos helps you plan it.
A great logger records your sets. Sthenos does that — then adds the plans, the science, and the people to actually keep you progressing.
trackers
Comparison reflects the common paid logger category as of 2026. Both approaches log well — Sthenos is for lifters who also want to understand and shape their training.
Get Sthenos on iPhone
Free to start — serious tools and real accountability. Premium unlocks unlimited saved plans and a managed AI assistant.
Download on the App Store