marble.fit

New in 2.1: guided workout sessions, sprint targets, a redesigned exercise library, JSON backup and restore, and clearer progress across every set.

Marble is a private workout journal built for people who want to train with focus, log quickly, and understand their own progress.

Record weights, reps, distance, time, RPE, rest, notes, and supplements without an account, ads, or tracking. Core features use data stored locally on your iPhone or iPad.

TRAIN WITH A PLAN

• Start a focused workout session and keep every set organized in your Journal
• Build a weekly split with planned exercises for each training day
• Create sprint prescriptions with distance, rep count, target time or range, and rest
• Score each sprint rep against the exact goal saved when you logged it
• Use a Live Activity and Dynamic Island rest timer between sets

SEE REAL PROGRESS

• Follow estimated 1RM trends with matched-effort comparisons
• Review genuine personal records and best weight at every rep count
• See when a PR is within reach while logging
• Get evidence-based double-progression hints
• Track weekly goals, flex weeks, monthly reports, and muscle-group coverage

MAKE MARBLE YOURS

• Choose an emoji or SF Symbol for every exercise
• Search, favorite, create, and safely edit your exercise library
• Use fast repeat-last-set and Save + Next logging
• Review training history in clean Journal and Calendar views
• Track supplements alongside training

BRING YOUR WORKOUTS

• Import Apple Health and Apple Watch workouts
• Bring in Garmin workouts through Apple Health
• Scan handwritten workouts with on-device text recognition and review before saving
• Optionally send completed strength sessions to Apple Health
• Export and restore complete JSON backups; progress photos and videos remain on your device
• Log with Siri, Shortcuts, Spotlight, or the Action button

No accounts. No ads. No tracking. Just your training, clearly recorded—and clearly understood.