The ScreenGuardian desktop app showing real-time posture, screen-distance, and break feedback.

Real-time feedback for posture, distance, and desk habits, all on your computer.

Quiet nudges that tell you what to fix, not just what's wrong, and stay out of your way while you work. A live view is one glance away when you want it.

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Free during early access · macOS 12+ and Windows 10+ · One-minute setup

Winner 2023 Congressional App Challenge Winner 2024 Copernicus Entrepreneurship Olympiad

Catches posture drift as it happens

Reads slouching, head tilt, and forward-head in real time, and nudges you to reset before it sets in.

Tells you when you're sitting too close

Estimates how far you are from the screen and gives a gentle nudge when you drift closer than your target distance.

Catches hand-to-face habits

Optional habit cues notice repeated face touching in real time, then nudge you without storing video.

Stays out of your way while you work

Eye-break reminders and live checks run quietly in the background or a small floating window, and a Notification mode keeps just the alerts while everything else pauses.

You stay in control of your camera

ScreenGuardian only uses your camera while it's open, and everything it sees is processed on your computer, never stored or sent. It never fights another app for the camera, and it tells you when something else starts using it, so you always know what has your camera.

Your data stays yours

Posture, distance, and habit history lives only on your computer, never on a server, and you can erase it in two steps.

Recognition

National and international award winner

Won the 2023 Congressional App Challenge (U.S.) and the 2024 Copernicus Entrepreneurship Olympiad (international).

Privacy

Camera frames never leave your computer

Everything is detected on your device. Frames are never stored, sent, or sold.

How it works

Quietly, in the background

It stays out of the way while you work and only nudges you when a habit needs attention.

What it notices

Small corrections before slips become habits.

One quiet companion for how you sit, how close you are, when your eyes are due for a break, and the trends behind it all.

See all features

Live detection

Catches drift the moment it starts.

Posture, screen distance, and desk habits, noticed while a small correction is still easy, not after your back or eyes complain.

The ScreenGuardian dashboard with the live posture figure, session metrics, and an active bad-posture alert.

Trends

See the pattern, not just the moment.

Daily and weekly trends across everything it checks, so you can tell a rough afternoon from a habit worth changing.

Continuous checks

Posture
Screen distance
Screen time
Eye breaks
Face touches
Nail biting

ScreenGuardian's weekly screen-time trend, one bar per day with the weekly average marked.

Goals

Set a target, build the streak.

Quiet daily goals for posture and distance, with streaks that reward staying consistent instead of being perfect.

The Daily bad-posture limit goal in ScreenGuardian: 43m 6s today against a 1-hour cap, met 10 of 10 days, on a 10-day streak.

The Minimum screen distance goal in ScreenGuardian: 56.9 cm average against a 55 cm minimum, met 9 of 10 days, back on a 5-day streak after one missed day.

In the background

Works in the background, with four ways to stay aware.

Close the window and keep working. ScreenGuardian stays quiet on macOS and Windows: gentle nudges arrive only when a habit needs attention, the menu-bar quick look is one glance away, the floating mini-view keeps live feedback in a corner, and the slim status pill keeps your numbers in view.

Your history keeps building the whole time. Screen time, posture, and distance keep recording quietly, so the trends are ready when you come back.

The ScreenGuardian status pill showing a posture score of 96, a screen distance of 58 centimeters, and the next eye break. — Status pill

The ScreenGuardian floating mini-view showing a calm, good-posture figure. — Floating mini-view

A week of screen-time bars from the ScreenGuardian statistics tab, with the 5 hour 46 minute average line. — Still keeping track

ScreenGuardian now

Lean back a bit

Lean back to increase your distance from the screen.

Plus eye-break reminders, gentle habit cues, adaptive reminder styles and quiet hours that fit your day, and full on-device privacy controls.

See all features

How it's different

A reminder app nags on a timer. ScreenGuardian adapts to you.

Even alerts that only fire on a real problem turn into nagging if they keep repeating. So ScreenGuardian lets you set how often it speaks up, gives a held slip breathing room between nudges, and goes quiet for focus or sleep, instead of becoming noise you mute.

Reminder apps ScreenGuardian

When it speaks up On a schedule, even when you are sitting fine Only when your posture or distance actually drifts, and holds long enough to be sure

If a problem keeps up Same alert, same interval, on repeat Reminder styles (Subtle, Balanced, Coaching) set the breathing room between nudges

When you need quiet Mute it and lose the help Quiet hours for sleep or deep work, and snooze anytime, while detection keeps running

Where it lives A window or break screen you stop to deal with Runs in the background while you work in any app, with an optional floating mini-view

What it covers Usually just breaks, or just posture Posture, screen distance, eye breaks, and habit cues together

How it knows A fixed timer, blind to you Notices your real posture and distance, calibrated to your desk

What it sees A face it could recognize Posture landmarks only, it never identifies you

Your camera and data Often runs through the cloud Camera frames, posture readings, and desk-habit history never leave your device

In everyday use

Set it up once, then it blends into your day.

You set your desk position once. After that it stays in the background, speaks up only when something is worth a small correction, and keeps every reading on your computer.

Calibrate your setup

Set your usual desk position once so posture and distance feedback starts from your real workspace.

Work with lightweight feedback

Feedback responds to sustained patterns, with timing you control, so one imperfect frame never becomes a distraction.

Review patterns locally

Use goals, trends, and pinned charts to understand your habits without sending your desk history to a cloud dashboard.

Stays out of the way

Feedback you can tune

Habit feedback is optional.
Alert timing is adjustable.
Notification mode pauses local stats and history.
The app keeps working in the background when you want it out of the way.

What leaves your device?

Camera data does not.

Webcam frames Never stored or sent

Microphone audio Never requested

Posture and distance history Stays on your device

Sold or shared with advertisers Never

Support reports Only if you send one

Crash reports Only if you turn them on

Account email, when signed in Yes

Does ScreenGuardian record or store my webcam?

No. Camera frames are processed in memory on your computer to read posture and distance in real time, then discarded. Nothing is written to disk and nothing is uploaded.

Does any of my data leave my computer?

Your posture, distance, break, and habit history stay on your machine. Network use is limited to account/access checks, updates, downloads, and support or crash reports you choose to send.

Where is my data stored, and is it secure?

Your stats, history, and settings are kept in local files in ScreenGuardian's own folder on your computer, never uploaded. Because the data stays on your machine, it is protected by your operating-system account and disk encryption (FileVault on macOS, BitLocker on Windows), the same as any other file you own.

Does it use my microphone?

No. ScreenGuardian never requests or uses your microphone.

Does it work offline?

Yes. All processing runs on your device and works with no internet connection. The access check and any app updates simply refresh the next time you are online.

Does the full window need to stay open?

No. ScreenGuardian keeps running quietly in the background. Picture-in-Picture gives you a small floating live view, and Notification mode keeps live alerts running while local stats and history are paused.

What happens when my computer sleeps or I close my laptop?

Nothing to manage. ScreenGuardian sleeps with your computer and picks back up on its own when you return, so you do not need to quit it when you step away. If you want it off while you stay at your desk, use Pause anytime, or let it keep running quietly in the background.

Is this surveillance software?

No. ScreenGuardian reads posture, distance, and break cues from your webcam locally and shows that feedback to you. It does not record your screen, log keystrokes, or send behavior history to a server.

Does it recognize my face or build a faceprint?

No. ScreenGuardian detects posture landmarks (the positions of features like your eyes, nose, and shoulders) to estimate how you are sitting. It does not run facial recognition, does not build a face template or faceprint, and cannot identify you. Those landmarks are numbers processed in memory on your device for a single frame, then discarded.

Is it free?

ScreenGuardian is free while early access is active on your account. Paid plans launch later, with advance notice and early-bird pricing before any billing begins.

Which operating systems are supported?

macOS and Windows.

Early access

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