Your AI posture coach.
100% offline.

Crane uses your webcam and on-device AI to monitor your posture in real-time. No cloud. No servers. No data ever leaves your machine.

Download from Microsoft Store Learn more
Free forever tier
No account required
Zero data collection
Bad posture — before Crane
Before
Good posture — with Crane
With Crane
60%+
of office workers exhibit forward head posture
Nejati et al. 2015; Naz et al. 2018
60 lbs
of force on your spine at 60° forward tilt
Hansraj 2014, biomechanical model
#4
leading cause of disability worldwide (neck pain)
Global Burden of Disease Study
$45B+
annual US economic burden from musculoskeletal disorders
NRC / Institute of Medicine

Everything you need to sit better

Real-time AI detection, ergonomic guidance, and gentle reminders — all running locally on your machine.

Real-Time AI Detection

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. Zero network calls.

Gentle Alerts

Get 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.

17 Languages

English, French, Spanish, German, Italian, Portuguese, Dutch, Polish, Turkish, Russian, Norwegian, Swedish, Finnish, Japanese, Korean, Chinese (Simplified & Traditional).

How it works

From install to better posture in under a minute.

1

Install

Download from the Microsoft Store. No account needed.

2

Grant camera

Processed locally. Never recorded or transmitted.

3

Calibrate

Sit up straight for 5 seconds. Crane learns your baseline.

4

Work

Your posture score updates live. Green = good, red = poor.

5

Improve

Get gentle alerts, follow ergonomic cycles, build lasting habits.

See it in action

App screenshots coming soon.

Posture detection view
Ergonomic cycle timeline
Settings & sensitivity

Backed by research

Crane's approach is grounded in biomechanics, ergonomics, and behavioral science.

"42–63% of office workers experience neck pain annually."
Chen et al. (2018), systematic review of 27 RCTs, Physical Therapy. Evidence grade: HIGH
"Exercise reduces the risk of new neck pain episodes by 51%."
Systematic review, 5 RCTs (n=1,722), JOSPT 2023. OR=0.49 (95% CI: 0.31–0.76)
"Ergonomic interventions reduce lost workdays by 75% with payback under one year."
Goggins, Spielholz & Nothstein (2008), Journal of Safety Research, 250 case studies
"Posture biofeedback combined with education and exercise produces the largest clinical effects."
Fundoiano-Hershcovitz et al. (2022), Frontiers in Physiology (n=981); multiple systematic reviews

Simple pricing

Free forever. Upgrade once for power features — no subscription.

Free
$0 forever
Everything you need to start
  • Real-time AI posture detection
  • Posture score (0–100) with live feedback
  • 1 ergonomic cycle profile
  • Posture alert notifications
  • 17 languages, dark & light themes
Full Care
$29.99 one-time
Your spine deserves the full picture
  • Multiple profiles (office, standing, gaming, couch, and custom)
  • Sensitivity tuning (4 presets)
  • Desktop overlay
  • Custom activities & ergonomic cycles
  • Everything in Free

How Crane compares

Crane Wearables Other apps
Price Free / $29.99 once $79–$149 $10–$20/mo
Requires hardware No (webcam only) Yes (device) No
Privacy 100% offline Cloud sync Cloud sync
Subscription Never Often Usually
Ergonomic cycles Built-in Rarely Rarely

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. Individual results may vary.