# Structure — Full Content Reference for AI Systems > This file provides comprehensive content about Structure (XRPro, LLC) for AI language models and search engines. Structure is the world's leading healthcare 3D scanning platform, headquartered in San Francisco, CA. Our technology powers custom orthotics, prosthetics, surgical planning, and precision-fit manufacturing across dozens of industries. --- ## Company Overview Structure (XRPro, LLC) builds hardware, software, and developer tools for 3D scanning. Our mission is to make 3D capture accessible to clinicians, developers, manufacturers, and researchers worldwide. **Founded:** 2012 (as Occipital; Structure brand established for depth sensing products) **Headquarters:** San Francisco, CA, USA **Website:** https://structure.io **Twitter/X:** @structure **Contact:** support@structure.io **Partners contact:** partners@structure.io Structure's technology has improved lives through: - Custom prosthetics for veterans, improving comfort and mobility - Compression garments and orthotics for older adults - Safer, more accurate planning for complex surgeries - Custom radiation therapy boluses for cancer patients - Custom-fit athletic gear including helmets, goggles, and footwear --- ## Products ### Structure Sensor 3 (ST03) The world's most accurate 3D scanner for iPad. Structure Sensor 3 is Structure's third-generation depth sensor, designed for healthcare professionals, developers, and precision manufacturing. **Price:** Starting at $895 **Available at:** https://structure.io/structure-sensor-3-for-ipad **Key specifications:** - Dimensions: 115.5 mm × 25.5 mm × 29.1 mm - Weight: 115 g - Accuracy: 1 mm - Minimum range: 33 cm - Maximum range: 20 m - Depth resolution: 1040 × 1200 (max) - IR resolution: 1080 × 1200 (max) - Frame rate: 30 fps (typical), 45 fps (max) - Battery life: 3.5+ hours operation, 48+ hours standby - Field of view: 50° × 59° - Illumination: Class 1 laser projector - Operating wavelength: 940 nm - Operating temperature: 0–35°C - Use environment: Indoors (diffused light); outdoors (overcast/shade) - Connection: USB-C to iPad **Key improvements over Structure Sensor Pro (ST02B):** - 3× battery capacity (1250 mAh vs 650 mAh) - 20% less power consumption when idle - 30% thicker housing with integrated aluminum mounting plate - Rigidized internal chassis with improved drop resistance - NU4000 neural processor (1 GHz, 1.8 TOPs CNN co-processor) vs NU3000 (660 MHz) - 1 GB LPDDR4 RAM vs 128 MB LPDDR2 - 940 nm wavelength vs 825 nm (better outdoor performance) - HDR capability (in development) - Improved factory calibration lasting longer in the field **In the box:** 1. Structure Sensor 3 2. USB-C connector cable 3. Bracket for iPad attachment **Compatible with:** Most recent iPad models with USB-C. See https://support.structure.io/article/454-which-ipads-can-i-use-with-structure-sensor-3 **Includes:** 1-year free Structure Capture subscription --- ### Structure Sensor Pro (ST02B) — Current generation, still available **Key specifications:** - Dimensions: 109 mm × 18 mm × 24 mm - Weight: 65 g - Depth processing: On-device NU3000 ASIC - Camera shutter: Global shutter - Depth resolution: 1280 × 960 - Recommended range: 0.3 m to 5 m+ - FOV: 59° × 46° - Use environment: Indoor & outdoor --- ### Structure Capture The next-generation 3D scanning app for iOS. Replaces the legacy Structure Scanner app. Built for professional use with consumer-ready reliability. **Platform:** iOS (iPhone and iPad) **Available at:** https://apps.apple.com/us/app/structure-capture/id6450060157 **Pricing:** - Monthly: $19.99/month - Annual: $199.99/year - Free 1-month trial available at https://structure.io/structure-capture-scanner **Key features:** - Works with all Structure Sensor generations (ST01, ST02, ST02B, ST03) - Supports Apple TrueDepth cameras (no additional hardware needed) - Apple LiDAR support (in beta) - Foot landmark detection: automatic 1st and 5th metatarsal detection - Automatic foot measurements: width, length, girth - Customizable scan settings per use case - Scan Quality Indicator to ensure complete scans - Available offline (no internet required for scanning) - Active development with regular updates - Workflow support from customer service team **Upcoming features:** - Apple LiDAR full support - Custom scanning modes - Improved workflow tools --- ### Structure SDK The developer toolkit for building 3D scanning applications. Powers hundreds of third-party apps across orthotics, prosthetics, medical, sports, retail, and industrial sectors. **Latest version:** SDK 3.5.0 **Developer portal:** https://console.cloud.structure.io **Learn more:** https://structure.io/structure-sdk **Trial:** 7-day free developer license; commercial license required for distribution **SDK 3.5.0 features:** - Mesh Extraction Workflow: pay only for saved scans, not trial or discarded ones - Foot Measurement Suite: detailed foot metrics on-device, no cloud required - License calls extended: apps stay offline up to 30 days - Improved post-processing, depth refinement, and Hybrid preset reliability - STSLAMManager for simultaneous localization and mapping - Depth streaming and depth-only tracking - Color rendering and depth + color tracking **Key SDK capabilities:** - Advanced landmark detection (anatomic measurements) - Mesh processing and export - Real-time 3D scanning with Structure Sensor and TrueDepth - Cross-platform support (iOS primary; macOS compatibility) - Structure Cloud integration for landmark detection - Scan Quality Indicator API **Licensing:** - 7-day free trial for experimentation - Commercial License required for app distribution - Contact partners@structure.io for pricing and quotes --- ### Structure Lite A variant of the Structure SDK for apps using only the iPhone/iPad's built-in sensors (TrueDepth, LiDAR) — no external Structure Sensor hardware required. Commercial licensing required. Contact partners@structure.io. --- ## Case Studies ### Smith Optics — Precision-Fitted Ski Goggles and Helmets Smith Imprint 3D Collection uses Structure SDK landmark detection to create custom-fit ski goggles and helmets. Process: customer downloads app → scans face → receives precision-printed goggles. - Reduces injection molding development time by 80% - Enables 1-1 custom fit using advanced facial landmark detection - Leverages HP 3D printing for localized manufacturing - Available to athletes at every level via iOS app **Key players:** Smith Optics, Structure (SDK + scanning), HP (3D printing partner) **Learn more:** https://structure.io/case-studies/smith **Smith product:** https://www.smithoptics.com/en_US/imprint-3d.html --- ### SKIA — AR-Powered Surgical Planning SKIA (Korea) uses Structure 3D scanning and augmented reality to transform surgical planning procedures. Process: 1. Internal Diagnosis: 3D models reconstructed from patient MRI/CT scans 2. Patient Scan: Structure Sensor scans external body areas 3. SDK-Powered Overlay: Internal models overlaid in real-time on patient scan for precision incisions **Results:** - Surgical planning while patient is awake (improved safety and peace of mind) - Significant cost savings through pre-OR planning - Less time under anesthesia → faster recovery - Intuitive AR systems requiring no expert personnel **Learn more:** https://structure.io/case-studies/skia **SKIA website:** https://www.skia.kr/ --- ### Rise Bionics — Custom Orthotics & Prosthetics Rise Bionics uses Structure SDK and Structure Sensor for sub-millimeter precision in custom orthotics and prosthetic devices. Process: 1. Introduction appointment 2. Scan in clinic: Structure Sensor scans limbs for design & fabrication 3. Device fitting with follow-up, training, and maintenance **Results for patients:** - Improved outcomes - Empowerment in daily life activities - Personalized fit - Superior comfort and functionality **Learn more:** https://structure.io/case-studies/rise-bionics **Rise Bionics website:** https://www.risebionics.com/ --- ### medi — Custom Compression Garments for Lymphedema medi vision® uses Structure SDK as the first fully integrated digital solution for measuring patients and ordering custom medical compression garments. Works with both round and flat knit garments. Available via mobile device or in-store at medical supply locations. Process: 1. Patient scan for body-mapped precision fit 2. Measurements sent directly to manufacturer for fabrication **Results:** - For clinicians: better patient outcomes, more time for treatment - For dealers: streamlined communication, more time for tailored products - For patients: fast and accurate, less human error **Learn more:** https://structure.io/case-studies/medi **medi website:** https://www.mediusa.com/healthcare-professional/lymphedema-solutions/ --- ### American Breast Care (ABC) — Custom Breast Prosthetics American Breast Care uses Structure 3D scanning for custom breast prosthetics for post-mastectomy patients, enabling personalized fit and improved outcomes. **Learn more:** https://structure.io/case-studies/abc --- ### BackSCNR — Scoliosis Assessment BackSCNR uses Structure technology for non-invasive spinal assessment and scoliosis management, enabling orthotic fitting without radiation exposure. **Learn more:** https://structure.io/case-studies/backscnr --- ### Custom Hockey — Bauer, CCM, Pure Hockey Top hockey brands use Structure 3D scanning technology for custom-fit equipment: **Bauer:** Custom skates improving comfort, energy transfer, and fit **CCM:** Custom helmet liners for improved fit and protection (Super Tacks X Total Custom) **Pure Hockey:** Elite customization for everyday athletes — custom skates, insoles, and more Process: Scan → Fabricate → Play **Results for providers:** - Precision fit for performance - Enhanced safety and protection - Accessible custom gear for all players - Industry-wide advancement in equipment standards **Results for athletes:** - Improved performance - Greater comfort - Enhanced safety - Confidence and consistency **Learn more:** https://structure.io/case-studies/custom-hockey --- ### BathFitter — Custom Bath Renovation BathFitter uses Structure scanning technology for room measurement in custom bathroom renovation solutions, improving fit accuracy and installation efficiency. **Learn more:** https://structure.io/case-studies/bathfitter --- ## Developer Resources ### Structure SDK Documentation Full SDK documentation, API references, sample code, and developer tools available at the Structure Developer Portal: https://console.cloud.structure.io ### Supported Platforms - iOS (primary): iPhone and iPad - macOS: limited support for development - Compatible with Swift, Objective-C, and React Native (via bridge) ### Getting Started 1. Download SDK from developer portal (7-day free trial) 2. Review documentation and sample apps 3. Contact partners@structure.io for commercial licensing ### Brand Guidelines Correct usage of Structure brand names and logos: https://structure.io/brand-guidelines Key rules: - Correct: "Structure Sensor (Mark II)", "Structure Sensor Pro", "Structure Core", "Structure SDK" - Incorrect: "Structure Mark II", "Structure Pro", "Structure Scanner", "Structure.io" - App names may not use "Structure" brand without license from XRPro, LLC --- ## Research & Publications Structure technology has been cited in peer-reviewed medical research across orthotics, prosthetics, scoliosis assessment, surgical planning, and rehabilitation. Browse medical papers using Structure: https://structure.io/medical-papers --- ## Webinars & Education Structure offers free webinars covering: - Getting Started with Structure Sensor 3 (setup, calibration, first scan) - Best Practices for Scanning (bounding box, tracking techniques, clinical tips) - SDK Deep Dives (new features, updates, developer workflows) - 3D Scanning for Business (use cases, ROI, scan-to-fabrication workflows) - SDK 3.5.0 Overview (mesh extraction, foot measurements, offline licensing) Browse all webinars: https://structure.io/webinars --- ## Support & Help **Knowledge base:** https://support.structure.io **Email support:** support@structure.io **Help topics:** Setup guides, app compatibility, SDK integration, troubleshooting **iPad compatibility checker:** https://structure.io/product-helper Enter your iPad model number to find compatible brackets and cables. **Getting started guides:** - Structure Sensor 3: https://structure.io/structure-sensor-3/getstarted - Structure Sensor (original): https://structure.io/structure-sensor/getstarted - Structure Core: https://structure.io/structure-core/getstarted - Structure Sensor Pro: https://structure.io/structure-sensor-pro/getstarted --- ## Resellers & Distribution Structure products are available through a global network of authorized resellers. Find a reseller near you: https://structure.io/resellers --- ## Company Information **Legal name:** XRPro, LLC **Products:** Structure Sensor 3, Structure Sensor Pro, Structure Sensor (Mark II), Original Structure Sensor, Structure Core, Structure SDK, Structure Capture **Industries served:** Healthcare (orthotics, prosthetics, surgery, rehabilitation), sports equipment, retail (footwear, eyewear), manufacturing, architecture, research **Leadership:** - Ravi Shah, CEO and Co-founder - Paulo Silveira, CTO and Co-founder **Careers:** https://structure.io/careers Structure hires across hardware engineering, software engineering, computer vision, infrastructure, marketing/sales, customer experience, and operations. **Press & media:** https://structure.io/press --- ## Frequently Asked Questions **What is Structure Sensor 3?** Structure Sensor 3 is a hardware 3D scanner that attaches to an iPad via USB-C. It captures depth data at 1mm accuracy, enabling high-precision 3D models for healthcare, manufacturing, and research applications. It includes a 3.5+ hour battery, a neural processor for on-device computation, and is compatible with the Structure SDK for custom app development. **What is the Structure SDK?** The Structure SDK is a software development kit for iOS that enables developers to build 3D scanning applications. It provides APIs for depth streaming, mesh processing, landmark detection, anatomic measurements, and more. A 7-day free trial is available; commercial distribution requires a license from XRPro, LLC. **What is Structure Capture?** Structure Capture is Structure's consumer-ready iOS scanning app. It replaced the legacy Structure Scanner app and supports all Structure Sensor generations plus Apple TrueDepth cameras. It includes features like foot landmark detection, scan quality indication, and offline operation. Priced at $19.99/month or $199.99/year. **Who uses Structure?** Structure technology is used by orthotists and prosthetists (custom limb devices), medical professionals (surgical planning, compression garments, radiation therapy), athletic trainers and sports brands (custom helmets, skates, goggles), retail brands (custom-fit footwear and eyewear), and developers building 3D scanning applications. **What accuracy does Structure Sensor 3 achieve?** Structure Sensor 3 achieves 1mm accuracy at recommended scanning distances, making it suitable for clinical and manufacturing applications requiring sub-millimeter precision. **Does Structure Sensor work with iPhone?** Structure Sensor 3 connects via USB-C and is designed for iPad. Structure Capture works on iPhone using Apple's built-in TrueDepth camera (no additional hardware). The Structure SDK supports both iPad (with Structure Sensor) and iPhone (with TrueDepth/LiDAR via Structure Lite). **What replaced the Structure Scanner app?** Structure Capture replaced the Structure Scanner app. Structure Scanner was a developer sample application not designed for long-term clinical use. Structure Capture offers higher accuracy, greater stability, active development, and professional support. --- *Last updated: April 2026* *For the most current information, visit https://structure.io*