AI body composition + diet coaching for iPhone
LeanFrame turns two photos, front and side, into a full body-composition read: body fat %, FFMI, lean mass, per-muscle-group scores and a muscle map. Then its AI coach reads your scans and your food log together, so the advice is grounded in your results, not vibes.
The loop: measure → log → coach → plan
No streak confetti, no wellness fluff. Four tools that close the loop between what you eat and what it builds.
Measure
Take a front and a side photo. LeanFrame's AI reads them into body fat %, FFMI, a lean-mass estimate and per-muscle-group scores on a muscle map. Every check-in is compared against your previous scan, so when the scale moves, you know whether you gained muscle or fat.
Log
Point the camera at your plate and get calories, protein, carbs and fat, per item. The AI shows its assumptions instead of hiding them. Wrong about something? Add a note, “that was 3 tbsp of oil, not 1”, and it recalculates.
Coach
The AI coach reads both your food log and your body scans. Ask “am I gaining muscle or fat?” and it answers from your actual check-in: weight, body fat delta, FFMI, 7-day diet average. It can even fix your log conversationally: say “I logged 4 eggs but it was 3” and it is fixed, with a confirmation you can see.
Plan
Protein-first targets at 2.0–2.2 g/kg, not an afterthought. Pick a cut, recomp or lean-bulk plan and LeanFrame sets your calories for training days and rest days separately, then tracks whether it's working over 30 and 90 days.
Photo-based AI body-fat estimation matched DEXA at 0.98 concordance.
npj Digital Medicine, 2025 · n = 1,273
Pricing
Logging, food search and photo check-ins are free forever, and your first AI body scan is included. Pro unlocks the rest of the AI.
Free forever, no card required
$0
7-day free trial on the annual plan
$9.99 / month
or $49.99 / year (save 58%)
Prices in USD; your App Store shows local pricing. You sign in with Apple and are billed through your Apple ID. The annual trial converts to a paid subscription unless cancelled at least 24 hours before it ends. Cancel anytime in iPhone Settings.
FAQ
Photo-based AI body-fat estimation matched DEXA at 0.98 concordance in a 2025 npj Digital Medicine study (n = 1,273). Your results depend on photo quality: consistent lighting, distance and pose week to week give the most reliable trend. Treat any single scan as an estimate; the week-over-week change is the signal that matters.
Your photos are uploaded to our servers for AI analysis and stored securely so each check-in can be compared against your previous scan and shown in your progress timeline. Every photo request is checked server-side against your account, so only you can access them. They are never sold, never used for advertising, and never used for anything other than analysing your physique. You can have your account data, including all photos, deleted on request; see our privacy policy.
Yes. Manual food logging, the 17,000+ food database, your plan and progress photo check-ins are free forever, and you get one free AI body scan. Pro unlocks unlimited scans, retroactive analysis of your stored photos, the meal camera, the coach and 30/90-day trends, at $9.99/month or $49.99/year with a 7-day free trial on the annual plan.
You take two photos: front and side. LeanFrame's AI analyses them and estimates body fat %, FFMI and lean mass, and builds a per-muscle-group muscle map. At your next weekly check-in it compares the new scan against the previous one and tells you whether the weight you gained (or lost) was muscle or fat.
LeanFrame is designed for iPhone. It installs and runs on iPad in iPhone compatibility mode, but body scans and meal scanning work best with an iPhone camera.
Subscriptions are billed by Apple. Cancel anytime in iPhone Settings → your name → Subscriptions. You keep Pro until the end of the paid period, then drop back to the free tier. Your log and history stay.
LeanFrame for iPhone
Two photos a week. One honest number. No guessing.
LeanFrame