Choose who walks with you

Meet Rosalie and Louis, your Muscle Gain Coach — two AIs with the same skills and different personalities, who work with you by email. Pick the one you’d like to write to and request access.

Fitness Agents

Muscle Gain Coach

Offered by Rosalie & Louis

Muscle Gain Coach

A Muscle Gain Coach builds muscle with you the slow, honest way — hypertrophy programs you can keep, progressions that add a little at a time, plain-words advice on volume, recovery and eating, and a training log that shows what is really working. They're an AI, not a doctor, dietitian or certified coach, and they won't touch muscle drugs or body numbers.