Know your body.
Not just your weight.
Take one photo. LeanLens estimates your body fat percentage range, honestly rates your physique, scores your muscle balance and symmetry, and gives you personalized next steps for training.
Free scanPrivate by designResults in seconds.
The whole experience, built like it belongs on your phone.
Review your body-fat range, muscle scores, physique insights, strategy, and progress in one place.
Curious about your numbers?
Run a quick physique check.
Upload a photo for an initial body-fat range, physique rating, and visible muscle-balance summary. No app installation or account needed.
What can one photo tell you?
More than a scale ever will. Every scan produces a structured read of your physique: honest, specific, and comparable over time.
A range, not a fake decimal.
We show you an honest percentage range because that’s what a photo-based body-fat estimator can actually deliver. No made-up precision, no pretending.
12 muscle groups, individually scored.
From chest to calves, see which visible groups lead and which lag.
Symmetry and proportions, in context.
Left–right balance and proportion ratios, read against your frame, not someone else's.
Every scan, compared to your last.
Deltas per muscle group show direction at a glance.
Your weakest link, named.
And a focus plan built around it, not a generic routine.
Your physique, rated honestly.
Every scan includes a physique rating for visible muscle, aesthetics, and symmetry, with confidence context. Full per-group detail depends on your plan, and photo quality still affects the result.
Rated against your own history, never anyone else's body. Explore the AI physique rater
From one photo to a structured fitness estimate.
Photograph
Add front and side photos from your camera or gallery; consistent light, distance, and clothing make every comparison sharper.
Analyze
The AI body scanner estimates your composition in seconds: body-fat range, muscle-group scores, symmetry, and proportion, all from your photos.
Act
Scores, ranges, and a focus plan, plus every scan joins your timeline so the next one has something honest to compare against.
Built like an instrument, not a gimmick.
Every result is structured, versioned, and comparable, so the numbers mean the same thing scan after scan.
A complete picture of your fitness.
From natural potential to estimated nutrition guidance. Get clearer context for your next phase.
Body Composition
Track your estimated lean mass vs. fat mass split over time and see how your composition responds to your training.
Natural Potential (FFMI)
Put your estimated lean mass in context on the Fat-Free Mass Index scale. FFMI is a reference point, not a measurement of your genetic ceiling.
Fuel Strategy
Get an informational Cut, Bulk, or Recomp phase suggestion, with estimated calorie and macro guidance when your profile details are available.
Suggested Training
Exercise, set, and rep suggestions built around your ranked focus areas — so the plan matches what your scan actually shows.
Is it actually getting better?
Your transformation, tracked honestly. Follow your estimated body-fat trend, muscle balance, and what changed by region, always read against your own history, never anyone else's body.
Signed-in progress tracking includes a basic body-fat trend and recent comparison. Pro adds regional trends and full saved-analysis comparisons. Explore the body transformation tracker
Photos of your body deserve care.
Privacy and honesty aren't features we bolted on; they shape how the product works.
Your photos, handled with care
One purpose: creating your results. Your photos are shared only with the providers needed to create or store them. Guest scans auto-delete; sign in and you can delete your saved photos and results anytime.
Honest by design
Ranges over false precision. No body-shaming mechanics, ever. Results describe, they don't judge. And nothing about your body is used to pressure you.
Scan free every week
Free includes an estimated body-fat range, confidence, summary, visible scores, photo-quality guidance, and a limited muscle and focus view. Pro unlocks deeper detail, trends, strategy, and comparisons.
Simple, and honest too.
More depth, without the Free-plan wait.
- Analyze without the rolling Free-plan wait
- Detailed muscle-group breakdowns and deltas
- Personalized strategy and focus plan
- Advanced trends and full comparison tools
- Estimated calorie and macro guidance when your profile details are available
Free accounts can scan again after a short wait. Pro removes the wait and unlocks full results, trends, and comparisons.
Fair questions.
An AI body analyzer reviews photos to estimate visible fitness characteristics such as body-fat range, muscle development, proportions, and symmetry. LeanLens reports confidence-aware estimates rather than pretending photos deliver clinical measurements. How AI body analysis works
LeanLens reports an estimated range rather than false decimal precision. Results can vary with lighting, pose, distance, clothing, available angles, and model uncertainty, so compare several consistent check-ins instead of treating one result as a measurement.
AI can provide a useful visual estimate, but lighting, posture, camera distance, clothing, and angle can change the result. LeanLens reports an estimated range and recommends consistent front and side photos for progress comparisons. Read the mirror-selfie photo guide
LeanLens is a photo-based body-fat estimator. Traditional body-fat calculators use measurements such as weight, waist, age, or skinfolds; LeanLens interprets visible photo evidence and reports an estimated range. Explore the AI body fat analyzer
LeanLens can estimate visible muscle development, aesthetics, and symmetry and add confidence context. Full per-group detail depends on your plan, and every score can vary with photo quality and model uncertainty. Ratings describe visible photo patterns; they do not grade your worth.
Free includes an estimated body-fat range, confidence context, a summary, visible scores, quality guidance, and limited muscle and focus detail. Pro can add fat-distribution, composition, proportions, FFMI context, body-zone, and physique-profile detail when the required inputs and outputs are available.
Pro can provide a fitness phase suggestion and calorie, protein, carbohydrate, and fat guidance when the required profile inputs are available. These are estimates for informational fitness use, not a prescribed diet, medical advice, or a guaranteed outcome.
That's the point of scanning again. Every result joins your timeline: body-fat trend with estimated range bands, muscle balance over time, what changed by region, and a side-by-side compare of any two scans. Direction matters more than any single number.
They're processed to create your analysis. Source uploads, saved progress photos, and result data have different lifecycles and controls; the Privacy Policy explains the current behavior, model-training choices, and deletion limitations.
A smart scale estimates total body composition from electrical impedance, mixing fat, muscle, and water into one number. LeanLens reads what you actually look like: where muscle sits, how balanced it is, and how your composition shifts over time. Neither is a clinical assessment.
Yes. Free includes an estimated body-fat range and confidence, a summary, visible scores, quality guidance, and limited muscle, focus, trend, and comparison views. Pro removes the rolling Free-plan wait and adds full result detail, advanced trends, arbitrary saved-analysis comparisons, and macro guidance when the required inputs are available.
One photo.
A clearer picture.
Scan free every week. Upgrade to Pro for full reports and no waiting.