Body scan and body analysis apps are booming. They promise to measure your proportions, estimate body fat, rate your posture or show how you might look after training, all from a photo. Some are thoughtful and honest. Others collect your image, give a confident number and sell you a subscription. This checklist helps you tell the difference.
The 10 questions
1. Where does my photo go?
This is the most important question. Look for:
- On-device processing. The best privacy is that the photo never leaves your phone or browser.
- If it uploads, the policy should say how long it is stored, who can access it, whether it is shared with third parties or AI providers, and whether it is used to train models.
- A deletion option you can use without emailing support.
If the answer is vague, do not upload.
2. Who is it for, and does it check?
Body analysis is for adults. A responsible app asks you to confirm you are 18 or over and does not encourage analysis of other people's bodies.
3. What method does it use, and does it show it?
Trustworthy tools explain their formulas: the US Navy method for body fat, WHO ranges for waist-to-hip ratio, Mifflin-St Jeor for calories. They tell you which inputs matter. If the method is a black box ("our proprietary AI"), you cannot judge its accuracy.
4. Does it let me check and correct the measurements?
Automatic landmark detection makes mistakes on loose clothes, poor lighting or unusual poses. A good tool shows where it placed each point and lets you drag them. A tool that hides them cannot be corrected.
5. How does it describe accuracy?
Be wary of:
- "Medical-grade accuracy" from a phone photo.
- Precision to a decimal place without a stated error range.
- Claims of matching DEXA without published validation.
Honest tools say the numbers are estimates, describe typical error, and recommend tape measurements or clinical assessment where accuracy matters. See body fat measurement methods compared.
6. What does the number mean?
A score without context is not helpful. Look for:
- Reference ranges and what they are based on.
- Explanations of limits (for example, why BMI can mislead).
- Advice on what to do next, in an order of priority.
7. How does it treat body image?
The best apps are careful:
- No attractiveness ratings.
- No shaming language.
- No "ideal body" claims presented as facts.
- Safe calorie and body-weight limits.
- Signposting to professional support for concerns about eating or body image.
If you have a history of disordered eating or body-image distress, a scan app may not be a good idea. Talk to a professional.
8. How much does it cost, and how?
- One-time price vs subscription. Prefer clear, one-time prices for a report, or a subscription that is easy to cancel.
- Free trials that auto-renew can be a trap. Check the terms, and set a reminder.
- Refunds. Look for a clear policy.
- What is free. The basic measurements should not need a subscription.
9. What do I actually get?
Compare features: measurements, ranked plan, tracking, PDF, export. Ask whether the paid product gives you something you cannot get from free tools and a tape measure.
10. Who is behind it?
Look for a real contact address, a privacy policy, terms, and a description of how the tool was built. Be careful with apps that push supplements, coaching or products without disclosure.
Red flags
- Promises of dramatic, fast body change.
- Extreme calorie or weight targets.
- Rating your body or face out of 10 with no context.
- Requiring you to upload photos of a partner, child or someone else.
- No privacy policy or no deletion option.
- Pressure tactics, countdown timers, or unclear pricing.
- Claims to diagnose health conditions.
Green flags
- On-device processing for free tools.
- Clear explanation of methods and limits.
- Editable landmarks.
- Body-positive wording and safe limits.
- Straightforward pricing and a refund window.
- Easy deletion of your data.
How this site scores
Here is how The Body Report answers the checklist, so you can hold us to the same standard:
- Photo: free scans process in your browser and do not upload the image. Paid reports store photos privately and delete them on request or after the retention period.
- Adults only: yes, with an 18+ confirmation.
- Method: shown on every tool page and in the guides.
- Editable points: yes; you can drag every detected landmark, and your adjustments raise the confidence label.
- Accuracy: described as estimates, with tape measurements preferred and used when provided.
- Meaning: every result comes with reference ranges and a plain-language explanation.
- Body image: no attractiveness ratings; calorie floors; AI previews are illustrations, not predictions.
- Pricing: free tools, a one-time report price and optional credit packs; see pricing.
- What you get: the sample report shows a complete report before you buy.
- Who: see About and Contact.
If any answer surprises you, tell us. And if a tool you are considering does not meet this checklist, it is fine to skip it: a tape measure, a mirror, and the free calculators go a long way.