Posture Trainer: Sit Straight

Your neck pays for every hour you slump over a screen. Prop your phone against your chest or slip it in a pocket, and the app feels you slouch, then taps you to sit tall again. WHY IT HELPS • Tilt-sensor slouch detection — your phone becomes the posture monitor, no wearable needed • Gentle nudges the moment you drift forward, on an alert cadence you choose • Guided neck, shoulder and chest stretch routines that undo the hunch • Custom sensitivity, quiet hours and alert timing to fit your workday • Session history, daily streaks and progress you can actually see • Fully offline, with clean light and dark modes HOW IT WORKS 1. Calibrate your tall, upright posture on the Monitor screen 2. Prop your phone facing you, or keep it in a chest pocket 3. Get a soft double-tap the instant you slouch — straighten and carry on A REMINDER, NOT A DIAGNOSIS This app reads device tilt as a proxy for your posture to build a healthier sitting habit. It is not a medical device and does not diagnose, treat or cure any back or neck condition. FULL ACCESS Unlock every routine and setting with Premium — choose a weekly, yearly or one-time lifetime plan. Build a straighter, healthier posture habit today. Terms of Use: https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com