OnDeckOne workout.
No decisions.
OnDeck is the mystery-box fitness app. Tell it what equipment you have, and it hands you exactly one task — “100 burpees for time” — tuned to your body and your recovery. Finish it to see what’s next.
The mystery box
No endless program browsing, no planning paralysis. One task is on deck at a time — and you can’t peek ahead until you’ve earned it.
Physiology-aware
A recovery engine tracks muscle-group fatigue behind the scenes, enforces cooldowns, and picks work your body is actually ready for.
Your equipment, your scale
Register what you own — a full rack or a single kettlebell. Early calibration workouts tune every task to your real capacity.
The Mercy Rule
Having a rough day? Scale a task down without shame — the engine adjusts and keeps you moving instead of quitting.
How it works
Vibe Check
A quick, funny onboarding that captures your stats, equipment, and how you like to suffer.
Calibrate
Your first workouts are calibration probes that measure where you actually are — not where you say you are.
Open the box
One task appears. Do it, record it, and the engine percolates the next one while you recover.
Repeat
Fatigue-aware programming keeps every session productive — and every next box a surprise.