Grade IIFirst Light
15 min · 6 stations · Bodyweight
For iPhone, Apple Watch and Android
One authored functional fitness workout a day. Stations, reps and the Crux between them, sized to how you slept and the kit you own. Finish it, keep the mark, and send your time to someone who thinks they can beat it.
Your first Crucible is on us: the whole session, nothing trimmed.
A different workout every time, so you can't tell if you're better.
A race you train months for and enter once.
Hard sessions nobody sees, and nothing to show for them.
The test comes to you
A real test you can run every day, in your living room, a hotel room or the gym.
Every Crucible is authored to written rules and graded for difficulty.
Today's is chosen from your sleep, heart rate variability, resting heart rate and training load, so hard days land when you can take them.
Run the weekly ranked one and your time means the same as everyone else's in your division.
What a Crucible is
A rep target at each one. Break as often as you need to. The target is the total, not one unbroken set.
Between every station, instead of rest, a short timed effort: a hold, a carry or a crawl, on a clock you didn't start.
Your time, where it went, and a mark that records you finished to standard.
The Crux
Rest is where most workouts let you recover. A Crucible gives you the Crux instead, and it's why finishing one means something.
It needs no distance, no machine and no GPS, so it fits a hotel room. The day's Crux is the same for everyone, so the whole field runs the same movement.
On screen
Sized to you
Connect Apple Health or Health Connect and Crucible Fit reads your sleep, HRV, resting heart rate and training load, then picks today's Crucible to match. Hard days are spaced out on purpose. Your rep target climbs after you finish comfortably twice, and steps back the same day a session falls apart. If today turns against you, tap ‘Too much?’ to cut what's left. The session still counts.
For your first week we show your score without a verdict, because a reading only means something against your own history.
The morning brief: one notification on your phone, after last night's sleep syncs and never before 5 am, naming today's Crucible and why.
In the session
The movement, the countdown, the seconds left, halfway, switch sides. Nothing else.
Full volume, dipping only for the moment a cue is spoken.
Record them in chunks as you go. Breaks are expected and counted.
On a repeat Crucible, you hear it when you're at least 5 seconds ahead of your best, and never when you're behind.
On screen
Apple Watch
STATION while you work, CRUX between stations, with the countdown on the face.
Record your reps from the Watch as you go.
Start today's Crucible from the Watch. Your iPhone runs it.
Add Crucible Fit to your watch face.
The finish
The receipt draws your session instead of listing it: station time against Crux time, how every Crux effort held, your breaks and your next target.
A mark records that you finished to standard. It doesn't drop when you sleep badly, and it never expires.
When something happens for the first time, like every station unbroken or a Grade cleared, the app says so once, where it happened.
The week
Your daily Crucible adjusts to your recovery. Each week there's also a ranked Crucible for your division: bodyweight, dumbbell or kettlebell. Everyone runs the same one, so it doubles as a weekly competition for your gym or your friends. Equipment is a division, not a handicap. Run it any day from Monday morning to late Sunday night, exactly as written, and your time enters the week's field. Your fastest time stands. Saturday is when the field gathers.
A ranked time needs heart rate from any device that writes to Apple Health or Health Connect, or an observer's code. Training alone with no sensor? The mark still counts in your own record.
Ranked weeks in a row build a streak.
Share
Your finish becomes one clean image: your time, your stations and your Crux. It carries a link that opens the same Crucible, so they can run it and post their own time. You see exactly what goes out before you send it, and nothing else leaves your phone.
Programs
Dumbbells
8 weeks · 4 a week · Peaks at Grade III
Train Your Way
A 5,000+ movement library with video and instructions. A planner that builds a session from what you're training and how long you have. Saved workouts that start with one tap. Circuits, EMOM, AMRAP, supersets and pyramids. History, personal records and a strength index that counts your Crucible loads.
Pricing
It's on us, the whole session.
Today's Crucible is sized to how you woke up.
Once a week, in your division. Keep your marks, and share your time.
A record of marks that don't expire. A streak of ranked weeks. A number that's yours, and a friend still chasing it.
Questions
Same spirit, different venue. HYROX and Spartan DEKA are events you train for and travel to. Crucible Fit is a test you run where you are, every day, with a ranked Crucible each week on top.
Two honest differences: there is no running, and there are no sleds or machines. Every Crucible runs on bodyweight, dumbbells or kettlebells in one spot, which is why it fits a living room or a hotel room.
Crucible Fit is not affiliated with or endorsed by HYROX or Spartan DEKA.
No. Every Crucible has a bodyweight version, and the kit you own decides your division: bodyweight, dumbbells or kettlebells.
No. The Watch mirrors the session your iPhone runs. For a ranked time, any device that records heart rate to Apple Health or Health Connect counts, or an observer can confirm it.
Tap ‘Too much?’ mid-session to cut the remaining targets, drop the Crux, or finish the current lap. The session still counts, and your targets adjust.
Yes. Crucible Fit is on Google Play for Android phones, with the same Crucibles, ranked week, Programs and Train Your Way.
Readiness reads Health Connect, so it uses the sleep, heart rate variability and resting heart rate your watch or ring records. Workouts you record outside Crucible Fit, like a walk tracked on your watch, can be added to your history with one tap.
There's no Crucible Fit watch app on Android yet, so you run the session from your phone. Heart rate your watch records still counts as evidence for a ranked time.
Training guides
How to build functional fitness workouts at home with little or no equipment: the movement patterns to cover, how to structure a session, sample workouts and how to progress.
Read guideEMOM, AMRAP and station workouts each train something different. What each format means, how to pace it, how to measure progress and when to use which.
Read guideA hotel room workout that needs no equipment, fits between the bed and the desk and won't wake the neighbours, plus how to adjust it for jet lag and short nights.
Read guideYour first Crucible is on us. Then $14.99 a month with a 7-day trial, or $119.99 a year with a 14-day trial.
