THE SILENT EPIDEMIC

Right now, 8 out of 10 desk workers are in pain. Most don't know it yet.

Name: Crane — Posture Guard
Author: Crane

You sat down at your desk this morning and felt fine. Maybe a little stiff. Here's the problem: that's exactly what 80% of office workers say — right up until it becomes serious.

How's My Posture? — Free 2-Min Quiz

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Zero data collection

Scroll to see what's happening to your spine

Every inch your head drifts forward adds 10 pounds to your spine.

Right now, yours is probably carrying 40–60. But the damage doesn't stop at your neck. Your body is a closed biomechanical loop.

Spine

Forward head posture stretches posterior neck ligaments, causing cervical instability and accelerating disc degeneration.

Chu et al., 2020; Alghamdi et al., 2021

Lungs

Kyphotic posture reduces lung capacity — the Framingham Heart Study found decline comparable to light smoking.

Kado et al., JBMR, 2016 (n=275, 16-year follow-up)

Brain

Slouched posture increases negative mood, lowers self-esteem, and heightens fear responses.

Nair et al., Health Psychology, 2015 (RCT, n=74)

Head

53.8% of people with forward head posture suffer cervicogenic headaches.

J. Oral & Facial Pain and Headache, 2025

Gut

Abdominal compression from slouching slows digestion, worsens reflux, and increases bloating.

Imagama et al., 2012; Cailliet clinical reviews

The medical bills are where it gets truly painful ↓

Americans spend $134.5 billion a year on back and neck pain.

More than diabetes. More than heart disease. For the individual, the costs compound with terrifying speed.

Average 5-year treatment cost for chronic back pain

Year	Phase	Annual Cost	Cumulative
1	"Just stiffness" — OTC meds, maybe a doctor visit	$440–$1,200	$440–$1,200
3	First PT referral, ergonomic gear, imaging	$2,490–$8,100	~$5,400–$17,400
5	Chronic diagnosis, regular therapy, prescriptions	$3,894–$11,020	~$15,000–$50,000
10	Ongoing management, injections, lost productivity	$13,273–$24,203	~$78,000–$160,000
20	Possible surgery, permanent limitations	$15,000–$30,000+	~$228,000–$500,000

Sources: Stevans et al., JAMA Network Open, 2021; Spine Journal, 2023; BLS, 2024

There's a narrow window where this is still reversible ↓

89% less likely to need surgery. The difference? Getting help early.

The WCRI study — 26,000 claims across 27 states — found that workers who received early intervention had dramatically different outcomes.

less likely to need surgery with early intervention

$31,459

Average 5-year cost of ignoring posture

Stevans et al., JAMA Network Open, 2021

$54.99

One-time. Catches it before it compounds.

What if something could catch the problem the moment it starts? ↓

Meet Crane. Real-time AI posture detection that runs entirely on your machine.

You can't fix a subconscious habit with willpower alone. You need something that watches when you forget to.

Good posture

Poor posture

Real-Time AI Tracking

TensorFlow.js MoveNet tracks your head, neck, and shoulders every frame. Your posture score updates live — green to red.

100% Private

AI runs entirely on your CPU/GPU. Your webcam feed is never recorded, transmitted, or stored. No posture data leaves your machine.

Gentle Alerts

Non-intrusive notifications when your posture drops for too long. Smart smoothing prevents false alerts from quick movements.

Ergonomic Cycles

Guided sit → stand → stretch → walk routines. Evidence-based 20–30 minute intervals keep you moving throughout the day.

Smart Calibration

Personalized baseline adapts to your body. Auto-calibration, drift compensation, and three sensitivity presets.

Guided Breathing

9 built-in breathing patterns — box breathing, 4-7-8, and more — woven into your breaks to help you reset between posture cycles.

This isn't a privacy policy. It's a physics constraint.

Your webcam is the sensor. Your computer is the brain. The gap between them is zero — no internet connection is involved at any point. Crane is architecturally incapable of sending your data anywhere.

One-time. Less than a dinner out. Here's what that buys you.

7-day free trial, everything unlocked. Then $54.99 once — no subscription.

7-Day Trial

$0 for 7 days

Every feature, unlocked

Real-time AI posture tracking
Posture score (0–100) with live feedback
Breathing exercises & all ergonomic profiles
Posture alert notifications
21 languages, dark & light themes

After Your Trial

Crane

$54.99 one-time

Keeps everything, permanently

Everything unlocked in your trial, forever
Sensitivity tuning (4 presets)
Desktop overlay & custom activities
Use on up to 5 devices
No subscription, ever

vs. Subscription Competitors

Posture Tool	Year 1	Year 2	Year 3	3-Year Total
Crane	$54.99	$0	$0	$54.99
BLiiNK	$47.88	$47.88	$47.88	$143.64
SitApp Pro	$34.99	$34.99	$34.99	$104.97
Posture Reminder	$99.99	$99.99	$99.99	$299.97

Over a 5-year career stretch, Crane costs 3 cents per day. Your spine is worth more than 3 cents.

It takes 66 days to build a habit that sticks. Crane is there for every single one.

Crane doesn't rely on your memory or motivation. It relies on the same feedback loop that behavioral scientists use to change habits in clinical trials.

"66 days to habit automaticity. Missing a single day didn't derail the process. What mattered was consistent, real-time feedback."

Lally et al., European J. Social Psychology, 2010; confirmed by 2024 meta-analysis (d = 0.67)

"56 RCTs found digital health interventions effectively reduce MSK pain and improve functioning."

Teirlinck et al., JMIR, 2022 (n=9,359)

"Significant improvement in physical functioning, emotional well-being, energy, confidence, and stress in 4-week posture feedback study."

Harvey et al., 2020 (n=56)

"Posture biofeedback combined with education and exercise produces the largest improvements in posture habits."

Fundoiano-Hershcovitz et al., Frontiers in Physiology, 2022 (n=981)

Frequently Asked Questions

Getting Started

What is Crane?

Crane is a desktop posture companion that uses your webcam and on-device AI to track your sitting posture in real time. It runs entirely on your computer — no cloud, no servers, no data ever leaves your machine.

Is there a free trial?

Yes. Every feature is unlocked for 7 days — real-time posture tracking, alerts, the ergonomic cycle timer, breathing exercises, custom profiles, sensitivity tuning, overlay customization, and custom activities. No account or credit card needed to start. After 7 days, a one-time $54.99 purchase keeps it working.

What are the system requirements?

Crane requires Windows 10 or later (or macOS) and a webcam. It uses minimal CPU thanks to optimized TensorFlow.js models. No GPU required.

Privacy & Safety

Does Crane access my webcam? Is the footage stored?

Crane accesses your webcam feed frame-by-frame for posture analysis. No images or video are ever saved to disk, transmitted over the network, or stored anywhere.

Does Crane send any data to a server?

Your posture data never leaves your computer. The only network activity is license validation for Pro users and app updates delivered through the store.

Payments & Pro

What does Pro include?

Pro unlocks: multiple posture profiles, fine-grained sensitivity controls, overlay size and opacity customization, and custom activity creation for your ergonomic cycle.

Is the Pro payment one-time or a subscription?

One-time payment of $54.99, after your 7-day trial ends. No subscription, no recurring charges. You pay once and keep Crane working forever.

Wellness Disclaimer

Crane is a general wellness product designed to encourage postural awareness and a healthy lifestyle. It is not a medical device and is not intended to diagnose, treat, cure, mitigate, or prevent any medical condition, disease, or musculoskeletal disorder. The information and data provided are for educational and self-monitoring purposes only and should not replace the advice of a qualified healthcare professional. If you experience chronic pain, consult a physician.