Guide
Healthier time at your desk
Two kinds of guide: how to get the most out of ScreenGuardian, and plain-language advice on the things that quietly wear you down at a screen, eye strain, screen distance, and posture. The app puts this into real-time, on-device feedback, but the advice here stands on its own.
Using ScreenGuardian
Getting started
Install the app, allow camera access, and run your first session.
Calibrating your setup
The quick, no-measuring calibration that fits feedback to your body and desk.
Understanding posture feedback
What the app notices, why it stays adaptive instead of nagging, and how to act on it.
Screen-distance feedback
How distance is estimated, what the too-close alert means, and how to use it.
Eye breaks and the 20-20-20 rhythm
How break reminders work and why they pause when you step away.
Goals and progress
Goals, streaks, and progress, focused on quality of time at the screen, not raw hours.
Notification mode, background running & PiP
Run the app quietly, use the alerts-only mode, and keep a floating live view.
Your data and privacy
What stays on your computer, what never leaves it, and how to erase everything.
Troubleshooting
Camera not found, the macOS damaged-app message, install warnings, and updates.
Learn: posture, eye strain & ergonomics
Posture apps: what they do and how to choose
The main types of posture and eye-strain app, what to look for, and where ScreenGuardian fits.
The 20-20-20 rule, explained
What the rule is, why it eases eye strain, and how to actually remember it.
How far should you sit from your screen?
A simple target for screen distance, and why you drift closer without noticing.
How to fix your posture at your desk
Neutral desk posture, and the difference between a bad habit and a bad setup.
Is your screen too low?
The signs of neck craning (tech neck), and how to raise your screen to a healthier height.
Desk habits that quietly strain you
The small unconscious loops (face touching, slouching, leaning in) and how to break them.
Looking for more help? Visit Support or the help center.