Skip to content
Crucible Fit
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Pricing
Get Crucible
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing
  • FAQ
  • Training Guides
Get Crucible
Crucible Fit

A daily functional fitness test for iPhone and Apple Watch. Stations, reps and the Crux, sized to your readiness and your kit.

Download on the App Store

Crucible Fit is coming to Android

Today it's on iPhone and Apple Watch.

Get Crucible

Crucible Fit

  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing

Explore

  • Training Guides
  • Exercise Library
  • FAQ
  • Press
  • Support

Legal

  • Terms and Conditions
  • Privacy Policy
  • Consumer Health Data Notice

CRUCIBLE FIT™ and Crux by Crucible Fit are trademarks of Crucible Fit, LLC.

© 2026 Crucible Fit, LLC. All rights reserved. Apple, the Apple logo, iPhone and Apple Watch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.

Apple Watch

Every station on your wrist.

Apple Watch mirrors the session your iPhone is running: the station, the reps left, the Crux countdown and your heart rate. The iPhone runs the session, so keep it nearby.
  • Apple Watch during a station: the STATION badge, 20 reps to go, and heart rate 57.
    During a station
  • Apple Watch during the Crux: the CRUX badge, 17 seconds left, and heart rate 63.
    During the Crux

On your wrist

Eyes on the work.

  • Station and Crux badges

    STATION while you work, CRUX between stations, with the countdown on the face.

  • Bank reps with the Digital Crown

    Record your reps from the Watch as you go.

  • Start from your wrist

    Start today's Crucible from the Watch. Your iPhone runs it.

  • A watch-face complication

    Add Crucible Fit to your watch face.

Heart rate that counts

Heart rate recorded across a ranked attempt is evidence for your time. Apple Watch counts, and so does any other device that writes heart rate to Apple Health.

Do you need a Watch?

No. The Watch mirrors the session. For a ranked time, another heart rate device or an observer's code works too.

Every station on your wrist.

Your 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.

Download on the App Store

Crucible Fit is coming to Android

Today it's on iPhone and Apple Watch.

Get Crucible