Comparison

Structure Capture, 3D Scanning vs CASSIE Air

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Structure Capture, 3D Scanning

This app transforms your iOS device into a portable 3D scanner for professional use in healthcare, product design, and more. It captures accurate body or object scans using advanced camera technologies and supports seamless export for digital fabrication workflows.

Highlights
  • 3D body and object scanning
  • TrueDepth and LiDAR camera support
  • Export in OBJ, STL, PLY formats
  • Foot landmark detection and measurement
  • Customizable scan settings
  • Offline availability
Read full description

Structure Capture is a mobile 3D scanning app that transforms your iOS device into a powerful, portable tool for clinical and professional use, including healthcare, orthotics & prosthetics (O&P), custom medical garments, and product design. Built for professionals, it enables fast and accurate body or object scanning using either the Structure Sensor 3 or Apple’s TrueDepth and LiDAR camera technologies. Clinics, labs, and manufacturers worldwide trust Structure Capture for its precision and reliability in scanning limbs, body parts, and complex shapes. Supporting digital workflows from scan-to-CAD/CAM fabrication, Structure Capture allows seamless export of industry-standard 3D file formats (.OBJ, .STL, .PLY), making it a top solution for orthotists, prosthetists, medical device companies, and product designers seeking efficient integration into their modeling and manufacturing pipelines. Structure Capture App Features: • Supporting TrueDepth technology – Structure Capture is available on devices with TrueDepth™ capabilities. • Customized Settings – Customize your scan settings for your individual needs. • Workflow Support – Our customer service team is happy to help you along the way, available with all subscriptions. • App Maintenance and Feature Upgrades – As this is now a consumer-ready application (no longer just a development app) we’re fully supporting this application for all industrial needs and uses. • Scan Quality Indication – Ensure that you’re getting a complete scan every time with our new scan quality indication tool built into Structure Capture. • Foot Landmark Detection and Measurement – Built-in 1st and 5th metatarsal detection and automatic width, length and girth measurements. Landmarks • Best-fitting plane to plantar surface • Ball of 1st metatarsal • Ball of 5th metatarsal • Ball of heel bone • Pternion • Metatarsale tibiale (MT) • Metatarsale fibulare (MF) • Arch apex • Acropodion Metrics • Foot Width • Foot Length • Metatarsal girth • Arch height Available Offline – Structure Capture is available without internet connection Applications Include: • Orthotics and Prosthetics (O&P) • Custom compression garments • Physical therapy and rehabilitation • Medical imaging and documentation • Industrial design and 3D model capture • AR/VR and digital twin workflows Structure Capture delivers professional-grade 3D scanning in a mobile format—designed to fit seamlessly into your clinical or production workflow.

About

CASSIE Air

Features
Read full description

Easily monitor the air quality in your building and streamline maintenance requests with our intuitive app. Stay informed with real-time air quality data and take action by creating and managing work orders for your maintenance staff directly from the platform. Keep your building safe, healthy, and running smoothly—all in one convenient place.

Screenshots

Structure Capture, 3D Scanning4 screens
CASSIE Air4 screens

Verdict

The call

The clearest difference is in-app purchases: CASSIE Air at none against Structure Capture, 3D Scanning's 2. CASSIE Air also leads on iOS requirement (13.4 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Structure Capture, 3D Scanning sells 2 in-app purchases, starting at $19.99 per month. CASSIE Air asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Structure Capture, 3D Scanning versus CASSIE Air: the parameters behind the verdict, then further details
ParameterStructure Capture, 3D ScanningCASSIE Air
PriceFreeFree
Rating4.0 (8 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings8 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.613.4 — better
Further details — not scored
Size43 MB23 MB
Age rating4+4+
DeveloperXRPro, LLCCassie, Inc.

In-app purchases

2 purchases

Structure Capture, 3D Scanning

Subscriptions2
  • Structure Capture Monthly7 Days trial$19.991 Month
  • Structure Capture Yearly7 Days trial$199.001 Year
None

CASSIE Air

No in-app purchases

Questions

Is Structure Capture, 3D Scanning free?
Structure Capture, 3D Scanning is free to download, with in-app purchases available.
Is CASSIE Air free?
CASSIE Air is free to download, with no in-app purchases.
Do Structure Capture, 3D Scanning or CASSIE Air have ads?
Neither Structure Capture, 3D Scanning nor CASSIE Air shows ads.
Which is updated more often, Structure Capture, 3D Scanning or CASSIE Air?
Structure Capture, 3D Scanning ships an update every 3 weeks, and CASSIE Air every 3 weeks. Most recently, Structure Capture, 3D Scanning was updated on October 30, 2026 and CASSIE Air on October 25, 2026.

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