Can a phone camera work instead of a webcam?

unhunch currently runs in Chrome and Edge on desktop and requires a webcam connected to that browser session. A phone camera is not supported as an input source. Most built-in laptop cameras work well — the app needs to see your head and shoulders clearly, which a standard 720p webcam handles without issue.

Does the app upload my video to analyze posture?

No video is uploaded. All pose detection runs on-device via MediaPipe. The camera feed never leaves your computer. unhunch uses the processed landmark coordinates — not raw video — to calculate your posture score, so there is nothing to intercept or store remotely.

Is camera-based posture tracking accurate enough to replace a wearable?

For seated desk work, camera tracking is accurate enough to catch the forward-head and shoulder-rounding patterns that cause most screen-related discomfort. It is not a clinical measurement tool. Wearables may offer more sensor axes, but for the core job — alerting you when you have been slouching too long — a calibrated webcam app delivers the same corrective nudge.

How is real-time posture coaching different from just trying to be more mindful?

Willpower and mindfulness rely on you consciously remembering to check your posture, but attention fades after a few minutes, especially when you're focused on work. unhunch's real-time detection catches slouching objectively—you don't have to remember or notice it yourself. This continuous, automatic feedback eliminates the gap between intention and action, making it far easier to stay in good posture without constant conscious effort. Over time, you internalize the corrections and need fewer alerts.

Does unhunch work for different body types and sitting styles?

unhunch uses on-device AI that learns your individual baseline and adapts to your body and sitting position. Rather than enforcing one rigid posture standard, it detects your slouching relative to your neutral alignment. This means it works for different heights, body shapes, and even different chair types—the system recognizes what good posture looks like for you specifically, and alerts you when you're drifting away from it.

Real-Time Posture Tracking With No Wearable Required

A posture app that works without a wearable device uses your computer's webcam and on-device pose detection to monitor alignment in real time — no clip-on sensor, no chest strap, no subscription hardware needed.

HOW CAMERA-ONLY POSTURE TRACKING WORKS

Camera-based posture apps use computer vision to detect key body landmarks — ears, shoulders, spine — through your existing webcam, then score your alignment continuously. No wearable is required because the camera provides the same positional data a sensor would, as long as your head and upper body are visible. unhunch runs this analysis on-device via MediaPipe, so nothing is uploaded. You get a live posture score (0–100), alerts when you slouch, and an always-on-top floating monitor — all from hardware you already own.

Works with any standard webcam — built-in laptop cameras included.
On-device pose detection means video is never sent to a server.
No wearable, no clip, no subscription hardware — software only.
Live score and alerts replace the vibration nudges a wearable gives.

Why wearables aren't the only way to track posture

Wearables measure posture by detecting orientation changes in a sensor attached to your body. A camera-based app does the same thing differently: it finds anatomical landmarks in each video frame and calculates the angles between them. If your head tilts forward or your shoulders round, the spatial relationship between those points changes — and the software catches it instantly. The practical difference is friction. A wearable must be charged, worn correctly, and replaced when it breaks. A webcam is already on your desk.

What the app actually monitors through the camera

unhunch detects the position of your head, neck, and shoulders relative to a calibrated neutral baseline you set at the start of a session. It tracks forward head posture (how far your ears drift in front of your shoulders) and shoulder rounding as its primary signals. Calibration adapts the baseline to your body and chair, so the app judges your posture against your own neutral — not an average person's anatomy. This matters because correct posture varies meaningfully by body type and desk setup.

Sit tall and click calibrate to set your personal neutral.
The live score drops when your head or shoulders shift out of range.
An alert fires — sound or OS notification — when you stay out of range.
The floating monitor keeps the score visible without switching apps.

Camera tracking vs. wearable: honest trade-offs

Camera-based tracking has one clear limit: it requires line-of-sight. If you lean out of frame or cover the lens, detection pauses. Wearables follow you anywhere — standing desks, phones, couches — because they're on your body. For seated desk work, a webcam covers the exact scenario where posture degrades most: the slow, unnoticed slouch over hours of screen time. A camera app won't track your posture on a walk, but it will catch the forward-head creep that starts around hour two of a focus session — which is usually what people are trying to fix.

Camera: works at any desk with a webcam, no hardware cost.
Wearable: follows you off-desk but needs charging and physical calibration.
Camera: video stays on-device — nothing shared with servers.
Wearable: limited to sensor axes — may miss asymmetric shoulder drop.

Setup: from browser to first alert in under two minutes

unhunch runs in Chrome or Edge with no download and no account required to start the free 30-day trial. Grant camera access, position yourself so your head and shoulders fill the frame, then click calibrate. The floating-window overlay keeps your score visible while you work in other apps. A one-time purchase of $14.99 gives lifetime access — no monthly fee, no sensor hardware to buy, and a 7-day money-back guarantee if it doesn't fit your workflow.

Try posture tracking without buying any hardware

unhunch monitors your posture through your webcam in real time — no wearable, no download, no credit card for the 30-day trial. If you keep it, it's $14.99 once with a 7-day money-back guarantee.

TRY UNHUNCH FREE

FAQ

Can a phone camera work instead of a webcam?: unhunch currently runs in Chrome and Edge on desktop and requires a webcam connected to that browser session. A phone camera is not supported as an input source. Most built-in laptop cameras work well — the app needs to see your head and shoulders clearly, which a standard 720p webcam handles without issue.
Does the app upload my video to analyze posture?: No video is uploaded. All pose detection runs on-device via MediaPipe. The camera feed never leaves your computer. unhunch uses the processed landmark coordinates — not raw video — to calculate your posture score, so there is nothing to intercept or store remotely.
Is camera-based posture tracking accurate enough to replace a wearable?: For seated desk work, camera tracking is accurate enough to catch the forward-head and shoulder-rounding patterns that cause most screen-related discomfort. It is not a clinical measurement tool. Wearables may offer more sensor axes, but for the core job — alerting you when you have been slouching too long — a calibrated webcam app delivers the same corrective nudge.
How is real-time posture coaching different from just trying to be more mindful?: Willpower and mindfulness rely on you consciously remembering to check your posture, but attention fades after a few minutes, especially when you're focused on work. unhunch's real-time detection catches slouching objectively—you don't have to remember or notice it yourself. This continuous, automatic feedback eliminates the gap between intention and action, making it far easier to stay in good posture without constant conscious effort. Over time, you internalize the corrections and need fewer alerts.
Does unhunch work for different body types and sitting styles?: unhunch uses on-device AI that learns your individual baseline and adapts to your body and sitting position. Rather than enforcing one rigid posture standard, it detects your slouching relative to your neutral alignment. This means it works for different heights, body shapes, and even different chair types—the system recognizes what good posture looks like for you specifically, and alerts you when you're drifting away from it.