Prevyu: AI Physique Tracker

Downgate Labs LLC

In-app purchases

About this app

Progress in the gym is easier to judge when you can see what changed, not just what the scale says.

Prevyu turns consistent progress photos into a clear physique record. Follow a cut, bulk, recomposition or weight-loss phase with body-composition readings, measured proportions and a Progress Score that connects 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 check-ins and a current weight, Pro shows what sustained weight loss with lean mass holding, or lean mass gained, would be worth the next score band.

COMPARE CHECK-INS

Compare any two check-ins with an automatic before-and-after view or drag slider. Review the verdict, comparability, body-fat direction, regional changes, goal alignment and next actions. Prevyu warns you 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 absolute development level, compare regions with your chosen physique, rank your own regions and review progress between assessments. Get one training focus for the next eight weeks, then see whether it improved.

MEASURE MORE THAN WEIGHT

Track shoulder-to-waist, waist-to-hip and waist-to-height, plus a posture screen from the side view. 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 a reading to every check-in, full score breakdowns, proportion trends, unlimited comparisons and Bulk or Cut analysis, Body Assessments whenever you want them, three goal previews a month and clean 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.

What’s new

Prevyu is now a physique tracker, not just an image generator. Goal previews are still here — now as motivation next to real tracking. Here's what else:
• Weekly photo check-ins with a Progress Score measuring how far you've moved toward the build you chose
• Compare any two check-ins side by side
• Multi-angle assessments of development, balance and proportions
• Proportions measured on-device from guided photos
• A Coach view with one clear focus for the week