Accuracy, photos, privacy, and limits.
The honest version of every question we get - including the ones where the honest answer is "we cannot do that."
Accuracy & results
#How accurate is LeanLens?
LeanLens provides estimates from photos. Accuracy depends heavily on photo quality, consistency, and how well the photo represents your current condition. Use it to track direction over time, not as a clinical measurement.
#Why do you show a range instead of one number?
A range is more honest for photo-based estimates. It helps you avoid overreacting to small differences and encourages trend-based thinking.
#Is this medical advice?
No. LeanLens outputs are for informational purposes only and are not medical diagnosis or treatment advice. For clinical accuracy, use professional methods such as DEXA or consult a qualified healthcare professional.
Photos & check-ins
#What photos work best?
Clear, well-lit photos with your full torso visible work best. Try to keep distance, camera height, and angles consistent across check-ins.
#Does multi-photo help?
Often, yes. Multiple angles can reduce ambiguity and improve stability of the estimate - especially if a single photo has tricky lighting, posture, or framing.
#How often should I re-check?
Most people get the best signal checking weekly or every two weeks with consistent photos. Daily check-ins create noise and stress for little benefit.
Privacy & account
#Do you store my photos?
LeanLens processes photos to create your analysis. Source uploads, saved progress photos, and result data have different lifecycles and controls. Read the Privacy Policy for the current storage and deletion behavior.
#Do I need an account?
No. You can run an analysis without signing in. If you want to save snapshots and build a progress timeline, you can sign in to enable those features.
#Can I delete my data?
Yes. If you created an account, you can delete it in-app from Profile > Privacy & data, or email support@leanlens.ai if you cannot sign in. See Privacy for details.
Pricing
#Is LeanLens free?
LeanLens is free to start. Free includes an estimated body-fat range and confidence, summary, visible scores, quality guidance, and limited muscle, focus, trend, and comparison views. Signed-in Free users can save history and analyze again on the rolling Free cadence when limits are enabled. Pro removes that wait and unlocks deeper results, advanced trends, full comparisons, and macro guidance.
Try LeanLens on your next check-in.
A confidence-aware range and practical next steps from a single photo - free to start, confidence-aware, and designed for consistent check-ins.
Review photo handling before upload - no account needed