
Prevyu: AI Physique Tracker
Gym Progress & Body Changes
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Free
In-App Purchases
About
Progress in the gym is easier to judge when you can see what changed, not just what the scale says.
Prevyu turns progress photos into a clear physique record. Follow a cut, bulk, recomposition or weight-loss phase with body-composition readings, proportions and a Progress Score connecting your start, current state and chosen build.
SEE YOUR PROGRESS TODAY
Today brings together your Progress Score, start, current and goal photos, body-fat and lean-mass direction, and key proportions. Each reading estimates body fat from your photo. Add weight and Prevyu calculates lean mass and FFMI for a fuller picture.
UNDERSTAND YOUR SCORE
See how body fat and lean mass drive your score. Estimates are rounded and smoothed so one noisy check-in does not rewrite your history. With enough data, Pro shows the sustained fat loss or lean-mass gain needed for the next score band.
COMPARE CHECK-INS
Compare any two check-ins with an automatic before-and-after view or drag slider. Review comparability, body-fat direction, regional changes, goal alignment and next actions. Prevyu warns about mismatched photo angles.
GET A THREE-ANGLE ASSESSMENT
Capture front, side and back photos for a fuller view of development, balance, proportions and posture. See your absolute development level, compare regions with your chosen physique and review progress between assessments. Get one training focus for the next eight weeks.
MEASURE MORE THAN WEIGHT
Track shoulder-to-waist, waist-to-hip and waist-to-height, plus a posture screen. Tap a supported result to see its measurement lines on the source photo. Compatible landmarks are measured on-device.
GET A CLEAR NEXT STEP
Coach combines your score, weight trend, consistency, proportions and latest assessment. It leads with the decision that matters now and shows the evidence behind it.
USE TOOLS BUILT FOR YOUR PHASE
Ask Bulk or Cut for a clear call to cut, bulk, recomp or maintain. Create an AI goal preview from your latest check-in and chosen build. It illustrates direction, not exactly how you will look.
TRACK WEIGHT-LOSS AND GLP-1 PROGRESS
Following a clinician-guided weight-loss plan, including a prescribed GLP-1 medication? Keep weight, visible change, estimated body fat and lean-mass direction in one record. Add a measured body-fat result whenever you have one. Prevyu does not track medication, manage doses or side effects, or provide medical advice.
BUILT FOR CONSISTENT CHECK-INS
- Unlimited photo check-ins and progress history
- Progress Score, milestones and measured proportions
- Two free body composition readings each month
- Unlimited manual entry of measured body fat
- Your first Body Assessment, first Bulk or Cut analysis and one goal preview included
- Prevyu Pro adds readings on every check-in, full score breakdowns, proportion trends, unlimited comparisons, Bulk or Cut analysis, Body Assessments, three monthly goal previews and unwatermarked progress cards
PRIVATE BY DESIGN
Your photos and check-in history are private to your account. You can delete individual photos, assessments or your entire account from the app.
Prevyu is a general wellness app. It is not a medical device and does not diagnose, treat, cure or prevent any medical condition. Photo-based body composition estimates, scores, posture screens and AI outputs are approximate. Prevyu does not provide medication, dosage or side-effect guidance. Consult a qualified healthcare professional for medical advice, diagnosis or treatment.
PREVYU PRO
Monthly and annual auto-renewing plans are available. Your local price is shown before purchase. Payment is charged to your Apple Account. Plans renew unless canceled at least 24 hours before the current period ends. Manage or cancel in App Store settings.
Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy: https://downgatelabs.com/privacy-prevyu.html
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What's New in Prevyu
1.2.8
September 11, 2026
Subscription plans
Prevyu Pro - Monthly
Unlock every Prevyu Pro feature.
$4.991 Month







