Your physique, scored out of 100 from one photo
The Dietly Fit AI body scan reads one upper-body photo and scores definition, leanness, symmetry and posture, estimates your body fat, and names the one thing to fix first. Then it builds your training week around it. Rescan weekly and watch the number move.
Want to try it first? Get a free physique score on the web, no account needed.
What the scan measures
Definition
Visible muscle separation through the chest, shoulders, arms and midsection.
Leanness
How low your body fat looks, judged against the reference for your sex.
Symmetry
Left to right balance and proportions, including the shoulder-to-waist taper.
Posture
Shoulder position and alignment, which change how every photo of you reads.
Body fat estimate
A rounded percentage from the photo. An estimate with a margin of a few points, and labelled as one.
Fix first
The lowest score that training can actually move, named so the next month has one priority.
The overall Form Score is the average of the four sub-scores. Our guides explain what a physique score is and how AI physique ratings work, including where they fail.
Sample results from the app
These are screens from the shipping app on a demo account, not mockups.
How it works
- Take one photo a week. Upper body, front on, the same light and distance each time. The progress photo guide covers the setup.
- Get your score and the weak point. Four sub-scores, a body fat estimate, and the lowest area flagged to fix first.
- Train around it. The weekly plan shifts volume towards that area, and every set you log also ranks each muscle. See training around a weak point.
- Rescan and compare. The score is smoothed across scans so the trend reflects real change, not one photo in bad light.
Privacy
- Scan photos are kept in your account so you can compare them week to week, and are used only to run your scans.
- They are encrypted in transit and at rest, and are never sold or used for advertising.
- The only parties that process them are the infrastructure providers that run the scan for us, under confidentiality terms.
- Delete your account from inside the app or at dietly.life/delete-account and your photos are permanently deleted within 30 days. Full details are in the privacy policy.
How it compares
A photo scan is not the most precise way to measure body fat, and we do not claim it is. It is the easiest way to track how a physique changes and decide what to train. Here is where each method fits.
| Method | What it gives you | Cost | Best for |
|---|---|---|---|
| Dietly Fit AI body scan | Physique score, four sub-scores, body fat estimate, weak point | In the app, weekly | Tracking how your physique changes and what to train |
| Tape measure + Navy formula | Body fat % from circumferences | Free | A repeatable body fat number at home |
| Smart scale (BIA) | Weight and a body fat reading | Device | Daily weight trend; body fat swings with hydration |
| DEXA scan | Fat, lean and bone mass by region | Clinic fee per scan | The most precise body composition number |
For other apps, our roundup of the best AI body scan apps compares what each measures and charges, and the head-to-head comparisons go app by app. To check a photo estimate against a tape, use the body fat calculator, or see what each body fat range looks like.
Common questions
- How does the AI body scan work?
- You take one upper-body photo in the app. A vision model rates definition, leanness, symmetry and posture from 0 to 100 against the reference for your sex, estimates body fat, and names the weakest area. Your Form Score is the average of the four, smoothed across weekly scans so one bad photo does not swing it.
- How accurate is an AI body scan?
- It is an estimate, not a clinical measurement. It reliably separates large differences, but the body fat figure carries an error of several percentage points, as every photo method does. Taken the same way each week, the change between scans is far more reliable than any single number.
- What happens to my photos?
- Scan photos are kept in your account so you can compare them week to week. They are encrypted, never sold and never used for advertising, and deleting your account permanently removes them within 30 days. The free web analyzer does not store photos at all.
- Is the AI body scan free?
- The app is free to download, with a 7-day free trial on the yearly plan. Dietly Fit Pro unlocks unlimited scans and the full weekly plan. To try a single score on the web first, use the free physique analyzer, which needs no account.
- Does it work for women?
- Yes. The scan judges against a sex-specific reference, because the same body fat percentage looks very different on men and women, and the sub-scores are named neutrally rather than around a male template.
Scan your physique this week
One photo, a score out of 100, the weak point named, and a training week built around it. Rescan next week and see what moved.
iPhone and Android
Scores and body fat figures are estimates from a photo, not medical measurements. Last updated .