On a GLP-1? Lose fat—not muscle.
AFTR helps you protect muscle while losing weight — with personalized protein goals, strength tracking, your Muscle Retention Score™, and built-in GLP-1 medication tracking.
How AFTR keeps your muscle
Two habits protect your muscle on a GLP-1 — eating enough protein and lifting. AFTR makes both effortless, tells you your next move, keeps you supported, and loops in your doctor.
Log your protein in a single photo
Protein is what tells your body to hold onto muscle. Snap a photo of any meal and AFTR estimates your protein instantly — no weighing, no guessing.
Track your resistance training
Lifting is the other signal that protects and builds muscle. Log each session and watch your weekly consistency — the habit that keeps the muscle on.
A coach that gives you one move a week
AFTR reads your protein, training, and pace of loss, then tells you the single most important thing to do this week — and shows the muscle you’re protecting, in pounds.
Share your wins with people who get it
Post your Muscle Retention Score and streaks to your community — the encouragement and accountability that keep you going week after week.
Help your doctor help you
AFTR quietly tracks your medication, doses, weight, and how you’re tolerating your shot — then turns it all into a clean one-page summary you can hand your doctor at your next visit.
Why I built AFTR
“I’m an orthopedic surgeon — keeping people strong is my whole career. When I went on a GLP-1 myself, I realized nothing was helping me protect the muscle I was working so hard to keep. So I built the tool I wanted.”
Get your Muscle-Protection Plan
Answer 4 quick questions — takes 20 seconds. No credit card.
What's your biological sex?
This shapes your muscle & protein targets.