Features

Features

Everything a serious athlete needs to track their physique — built mobile-first, private by design.

📸 Side-by-Side Photo Comparison

The core of Muscle Mirror. Select any two photos from your library and compare them in a synchronized, interactive view.

  • Swipe scrubber to reveal before and after
  • Overlay mode — ghost one photo on top of the other
  • Flip mode — mirror images for symmetry review
  • Pinch-to-zoom that stays perfectly synchronized across both photos
  • Grid guidelines to check posture and alignment

🪞 Ghost Overlay Camera

Take photos that are actually comparable. When shooting a new progress photo, you can overlay a previous photo as a semi-transparent ghost so you match your pose, angle, and framing exactly.

  • Choose any past photo as your ghost reference
  • Adjustable ghost opacity
  • Front and rear camera support
  • Review before saving

📂 Pose Categories

Organize your photos by pose — front relaxed, back double bicep, side chest, and more. Each category keeps your comparison library clean and easy to navigate.

  • Standard competition poses built in
  • Browse all photos for a pose in a clean grid
  • Quickly jump into comparison from any category

📊 Weight & Measurement Tracking

Numbers matter. Log your body weight and key measurements over time and see your progress visualized in clean charts.

  • Weight log with trend chart
  • Body measurement tracking (waist, chest, arms, legs, and more)
  • Imperial and metric unit support

🏆 Coach Check-In System

Designed for the athlete-coach relationship. Submit your weekly check-in directly through the app — your coach gets everything they need in one place.

  • Attach progress photos to your check-in
  • Include measurements and bodyweight
  • Add notes for your coach
  • Coaches can review all athletes and add feedback
  • No more texting photos back and forth

🔒 Privacy & Security

Your physique photos are some of the most personal images you will ever take. We treat them that way.

  • Photos stored in encrypted cloud storage
  • All URLs are time-limited and signed — no public links ever
  • Sign in with Apple — we never see your Apple ID password
  • Auth tokens stored in iOS Keychain
  • Delete your account and all data is permanently purged

📱 Built for iPhone

  • Sign in with Apple — one tap, no new password to remember
  • Photos upload in the background even if you close the app
  • Works on iPhone — iOS 16 and later