Free starter week

Your starter week, in a minute.

Four quick questions. One week of training matched to your goal, your days and what you have to train with. Free. Then take it further in the Claude or ChatGPT you already use.

Matched to your week
Gym, home or bodyweight
A real coach when you want one

Build your week.

General fitness guidance, not medical advice. If you have an injury, pain or a health condition, see a qualified professional before you start. This tool never writes meal plans and never judges your form.

After your first week

A plan is a start. A coach reads your week.

A real coach on Marrow sees every set you log and shapes the next week from how this one went.

Members and coaches can use the AI they already have, Claude or ChatGPT, to draft programs, log meals and workouts, and read files into Marrow. Marrow charges nothing for it.

Find a coach Are you a coach? Start on Marrow