# Prevyu: AI Body Fat Scanner — Rate My Physique & FFMI

> AI-powered body fat scanner and physique tracker with goal setting and progress visualization. (iPhone/iPad app by Downgate Labs LLC.)

- Source: https://appshunter.io/ios/app/prevyu-ai-body-fat-scanner/id6770741321 (this page in markdown: same URL + `.md`)
- Developer: [Downgate Labs LLC](https://appshunter.io/developer/1896762235)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 5 App Store ratings · 2 written reviews indexed
- Age rating: 12+
- Requires: iOS 15.5 · 94 MB
- Languages: English
- Released: 2026-09-11
- Data updated: 2026-10-24
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/prevyu-ai-body-fat-scanner/id6770741321/reviews.md

## What is Prevyu?

Snap one photo and get an AI estimate of your body fat percentage, muscle index (FFMI) and shoulder-to-waist ratio in seconds. Then check in each week and watch those numbers move toward the physique you choose.

Prevyu is a body fat scanner and physique tracker in one. The first reading shows where you are. Every check-in after it shows whether your cut, bulk or recomp is working.

ONE PHOTO, A FULL READING
Take a photo in good light and Prevyu draws the shoulder and waist guides on it, then estimates your body fat percentage, muscle index (FFMI) and shoulder-to-waist ratio. Each figure comes with a plain meaning, such as "athletic range" or "room to build". Your height and weight turn the estimate into lean mass and muscle index.

CHOOSE WHERE YOU'RE HEADED
Pick a goal physique on a map of nine builds, from Lean and Trim to Athletic, Muscular and Powerful, plotted by body fat and muscle. See yourself on the map, the route to your goal, and whether to get leaner, stronger or both.

SEE YOUR GOAL PHYSIQUE
Create an AI preview of you at the build you picked. It illustrates the direction, never a prediction of exactly how you will look.

TRACK EVERY CHECK-IN
Today shows your score toward your goal, what moved since your last check-in, and the next step with what it's worth. Progress charts body fat, muscle index, weight and proportions over 3 months, 6 months or all time. Between check-ins, log your weight, an optional scale body fat % and what you trained; Progress adds a smoothed weight trend and a day-by-day training grid.

COMPARE PROGRESS PHOTOS
Put any two check-ins side by side and get a verdict in plain words, the numbers behind it and an area-by-area read. Prevyu flags photos taken from a different angle or distance so you compare like with like.

RATE YOUR PHYSIQUE FROM THREE ANGLES
A Body Assessment uses front, side and back photos to rank your own regions against each other, screen your posture and give you one training focus for the next eight weeks.

ONE CLEAR NEXT STEP
Coach leads with your next move: when to check in, when to run a Bulk-or-Cut read, when to reassess. Bulk or Cut gives a clear call for where you are right now: cut, bulk, recomp or maintain.

FREE AND PRO
Check in as often as you like. Free includes 15 body fat readings in total, 4 comparisons or Bulk-or-Cut reads each month, your first Body Assessment and one goal preview. Prevyu Pro reads every check-in in full (body fat, muscle index and proportions) and adds the goal map on Today, the full score breakdown, more comparisons, Bulk-or-Cut reads and Body Assessments, and 3 goal previews every month.

APPLE HEALTH
Connect Apple Health to fill your daily log with weight, body fat and workouts, and see your workouts, steps and food between check-ins. Read only: Prevyu never changes your Health data.

PRIVATE BY DESIGN
Your photos stay yours: encrypted, never used for AI training, and deletable at any time, one photo or your whole account. With your permission, photos are analyzed by a third-party AI service (Google Gemini) to produce readings and previews; this permission is required for readings.

Prevyu is a general wellness app, not a medical device. Body fat, muscle index, posture and other readings are estimates from photos and can differ from clinical measurements such as DEXA. Prevyu does not diagnose, treat or prevent any condition. Talk to a qualified professional before making health decisions.

Prevyu Pro is an auto-renewing subscription, monthly or annual. Your local price is shown before you buy. Payment is charged to your Apple Account, and the plan renews unless you cancel at least 24 hours before the end of the current period. Manage or cancel any time in your App Store account settings.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://downgatelabs.com/privacy-prevyu.html

Screenshots show fictional demo users; their photos are AI-generated.

## Key features

- AI body fat percentage estimation
- Muscle index (FFMI) calculation
- Shoulder-to-waist ratio tracking
- Goal physique visualization
- Weekly progress check-ins
- Body assessment from three angles
- AI-generated physique previews

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Prevyu Pro - Monthly | $4.99 | per month |
| Prevyu Pro Annual | $39.99 | per year |


## Is Prevyu safe?

Not enough ratings yet to assess Prevyu.

## Is Prevyu legit?

Prevyu: AI Body Fat Scanner has limited verification signals. The AppsHunter Legitimacy Score for Prevyu is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/prevyu-ai-body-fat-scanner/id6770741321/reviews.md

### 5/5 — Wow actually good

*2026-10-15*

Checked it out because I was curious and wow the feeedback is pretty accurate / good smart idea!

### 5/5 — Best app for fitness

*2026-10-13*

Up untill now I was just guessing where I was and now I know my body fat percentage but not only that I can see what I’d look like when I reach my goal so the best inspiration is me

## Frequently asked questions about Prevyu

### How does Prevyu estimate body fat percentage?

Prevyu uses AI to analyze a single photo, estimating body fat percentage, muscle index (FFMI), and shoulder-to-waist ratio. This requires permission for photos to be analyzed by a third-party AI service (Google Gemini).

### What are the pricing details for Prevyu?

Prevyu offers a free version with limited readings and features. Prevyu Pro is available via a monthly subscription ($4.99/month) or an annual subscription ($39.99/year) which includes a 14-day free trial.

### Does Prevyu have ads?

No, Prevyu does not contain advertisements. The app is free to use with optional in-app purchases for premium features.

### What devices does Prevyu support?

Prevyu is available for iPhone and iPod devices.

### How often is Prevyu updated?

The latest version, 1.2.16, was released on October 17, 2026, indicating regular updates to improve functionality and features.

### Is Prevyu suitable for all ages?

Prevyu has an age rating of 12+, making it suitable for teenagers and adults interested in general wellness and fitness tracking.

### How does Prevyu handle user privacy?

Prevyu is designed with privacy in mind. Photos are encrypted, never used for AI training, and can be deleted at any time by the user. Permission is required for AI analysis.

### Can I compare my progress photos in Prevyu?

Yes, Prevyu allows you to compare any two check-in photos side-by-side, providing a plain-language verdict, numerical data, and an area-by-area read. It also flags photos taken from different angles or distances for accurate comparison.

## Version history (last 5 releases)

### 1.2.18 — 2026-10-23

Connect Apple Health and see what happened between check-ins.

• Connect Apple Health (read only): weight, body fat and workouts fill your daily log, and each check-in shows your workouts, steps and food since the last.
• Coach explains what moved, with protein, training and weekly targets in your own numbers.
• Share "Show your work": your measured change beside your workouts, protein and calories.
• A clearer Today, check-in result and Coach.

### 1.2.16 — 2026-10-17

Log today, between check-ins.

• Log your weight, an optional scale body fat % and what you trained, any day.
• A smoothed weight trend on Progress, with your photo check-ins marked on it.
• Every check-in now ends on its own result screen: what changed, when your next one is due, and milestones.
• A daily log reminder, separate from your weekly one.

### 1.2.15 — 2026-10-14

- With Pro, you can now get private photo reads: a body-fat and muscle estimate without adding the photo to your progress, score or goal. Private photos are kept in a folder that opens with Face ID, Touch ID or your passcode.
- Improved goal previews: they are now better at leg musculature and at keeping your skin as it is, including body hair, tattoos and scars.

### 1.2.14 — 2026-10-05

A cleaner, calmer Prevyu.

• Today now shows your score once, what moved since your last check-in, and your next step with the points it's worth.
• Your first reading is an annotated photo with three readings, each with a plain meaning.
• Pick your goal on a new map of nine builds, with a Leaner · Stronger · Both toggle.
• Progress has four tiles (score, body fat, muscle index, weight) that open one trend screen.
• Coach leads with one "Your next move" card.
• Comparisons lead with the verdict and explain it in plain words.
• Your weekly reminder now starts on the day of your first check-in.
• Plus fixes to Coach, comparisons and purchase errors.

### 1.2.13 — 2026-09-24

- See yourself at your goal with sharp, high-resolution previews that keep your own look
- Add older progress photos to see how far you've already come
- Get a photo-based bulk or cut recommendation anytime from the + menu

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## More apps by Downgate Labs LLC

- [Lapser: Photo Timelapse](https://appshunter.io/ios/app/lapser-photo-timelapse/id6772319642)

All apps by Downgate Labs LLC: https://appshunter.io/developer/1896762235

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*