
Precision strength training
Crucible turns a goal into a specific workout - built around your muscles, time, equipment, location, and energy. No more becoming your own coach.
Most apps drop you on a blank screen and expect you to coach yourself.

Total Body, Push, Pull, Arms, Core, and more - start from what you want today.
Choose how much time you have; the workout fits real life.
Workouts reflect the gear you can actually use.
Home, gym, or hotel - the plan adapts to where you train.
Light, Standard, or Push fit high- and low-energy days.
Review, reorder, replace, and preview before you start.
Circuits, EMOM, AMRAP, supersets, pyramids, ladders, and drop sets.
The plan
Tell Crucible what you want today and what you have to work with.
The runner handles sets, timers, rest, and voice cues so you stay present.
History, PRs, and readiness show the work adding up over time.

02 · In the session
A focused runner keeps you present while it handles the logistics.
One focused screen: current move, set, rest, and what's next.
Timed rest keeps your pace without watching the clock.
A countdown eases you into every set.
Log weight, reps, and completed work as you go.
Capture how hard each set actually felt.
Swap a movement mid-session without losing your place.
Real workouts get interrupted; the session bends with you.
Audio guidance so you train without staring at your phone.
Guides single-side work so nothing gets missed.
Finished early and strong? Add more work instantly.



03 · Progress
Proof the work is adding up - history, PRs, and trends.
Every past session, organized by date.
Exercises, sets, volume, duration, effort, and health metrics.
See how demanding a workout was versus recent training.
PRs surface the moment you beat a previous best.
See past performance for any single movement.
Consistency you can see and keep.
Know whether you're ahead of or behind your rhythm.
Volume, time, and counts add up over time.
Your full workout record, exportable anytime.

04 · Readiness and recovery
Crucible reads sleep, HRV, and workload so training fits your body.


Reads sleep, HRV, heart rate, resting HR, and workouts.
A score that says push, hold steady, or recover.
Body-state, separate from whether you finished a workout.
Heart-rate variability tracked over time.
Sleep quality woven into your recovery picture.
A simple long-term signal of fitness.
Acute vs chronic load, so you build sustainably.
Runs, rides, and yoga count toward your total load.
One signal for whether strength is rising or flat.

05 · Apple Watch
Run the whole session from your wrist.
Your phone session, live on your wrist.
Complete sets, skip, and manage rest from the watch.
Timers and workout state visible at a glance.
Always know the move you're on.
Watch and Health data enrich every session.

06 · Build and templates
Create, save, and evolve workouts exactly how you want.
Create workouts exactly the way you want.
Generate a plan, then make it yours.
Reuse the sessions you love.
Repeatable routines that cut the friction.
Your routines evolve instead of going stale.
Search or get recommendations fast.
Smart picks narrow the choices for you.
Templates nudge reps, weight, and difficulty up.

07 · Programs
Train across weeks with structure and purpose.
Organize training across weeks, not just days.
Strength, hypertrophy, deload, and testing phases.
Follow fixed days that fit your week.
Or run rotating A/B/C plans for irregular weeks.
Open the app and the next session is right there.
Completed workouts keep the plan in sync with reality.
08 · Preferences
Tune units, audio, locations, and tracking to fit you.
Pounds or kilos, your call.
Set the default rest that suits you.
Tune the baseline to where you are.
Make the app look the way you like.
Maintain home, gym, and travel setups.
Keep each environment's gear up to date.
Control voice cues and coach voice.
Detailed logging or a lighter-touch experience.

09 · Trust and ownership
Your training record stays yours, with help when you need it.
Understand features and troubleshoot fast.
A human path for help when you need it.
Your training record is never trapped.
Unlimited workouts, protocols, advanced tracking, and Watch.
Your training stays current across devices.
Share Pro with the people you train with.
Your account and data, protected.

Start training
Open Crucible and know exactly what to do, stay in flow while you train, and watch the progress stack up - while training with your body, not against it.