Mobile Body Scanning App for iOS and Android


Mobile body scanning apps turn a standard smartphone or tablet into a body measurement tool, capturing precise body data without dedicated hardware or specialist operators. Using computer vision, machine learning (ML), and AI, two guided poses are all that is required to generate a full measurement set, body composition analysis, and a 3D body model.

For clothing brands and retailers, product managers, and researchers who need accurate measurements from mobile devices, the body scanning apps from Size Stream deliver 240+ measurements and a 3D body model in minutes on iOS and Android. Scan images are processed on the device and never uploaded to the cloud without consent. The data stays consistent regardless of the capture method.

At a Glance

  • Two guided poses on a standard iOS or Android device, no dedicated hardware
  • 240+ body measurements and body composition metrics returned in minutes
  • Images are processed on the device and never uploaded without consent
  • Remote, on-site, and hybrid programs feed one consistent dataset
  • White-label builds under the organization’s own brand
  • SOC 2 Type 2 certified and GDPR compliant
Person holding a guided scanning pose beside a body measurement panel listing neck, shoulders, chest, waist, hips, thigh and inseam with a scan complete confirmation

How the App Turns Two Poses into Measurements

The process follows three steps from capture to usable data, each running automatically once a scan is started.

  1. The user opens the app and holds two guided poses while the smartphone camera analyzes the body from front and side.
  2. Computer vision, ML, and AI process the images on the device, building a 3D body model.
  3. The app returns 240+ measurements, body composition metrics, and structured data that flows into connected systems through an API.

Output arrives as a structured measurement set, not a raw image, so receiving systems can use it immediately.

Remote, On-Site, or Hybrid in One Workflow

The app supports three deployment models, all producing standardized measurements and feeding the same central system.

  • Remote: Individuals scan themselves from any location using a compatible mobile device, making it easy to collect data outside a dedicated facility.
  • On-site: Scans are completed at retail stores, clinics, gyms, workplaces, research sites, or other facilities using a designated scanning station. Users can self-scan with on-screen guidance or be assisted by an operator.
  • Hybrid: Organizations combine remote self-scans with scans collected at dedicated locations, giving distributed teams and central administrators access to one consistent data set.

A retailer can let online shoppers scan at home to expand its reach and reduce returns. A uniform program can deploy the app to staff across many sites instead of booking fitting sessions. Both run on the same workflow.

Shopper self scanning at home beside a shopper scanning at an in-store scan station, both producing the same result
Smartphone processing a 3D body scan on the device and passing only structured non-image data outward

On-Device Processing and Privacy by Design

Image processing happens on the device. Scan images are not uploaded to the cloud unless the user explicitly consents; only the resulting non-image data passes to the cloud. This removes the photo upload step that slows most consumer scanning tools and is the key privacy distinction between Size Stream and its competitors.

The contactless capture method also removes the measurement variability that tape measures and calipers introduce by compressing soft tissue and shifting body position.

  • SOC 2 Type 2 certified and GDPR compliant
  • Enterprise controls over branding, data access, and user management
  • Optional white-label builds under the organization’s own name

One Scan, Multiple Applications

A single mobile scan feeds every Size Stream solution and downstream application without a second capture. Because the same engine governs every capture method, mobile and on-site scans produce identical structured output. Teams can start with either approach – mobile app or hardware – without rebuilding their pipeline.

  • Body Measurements: precise sizing data for apparel teams and fit algorithms.
  • Body Composition Scanning: composition data and progress tracking for wellness programs.
  • Ready-to-Wear Sizing: size recommendations that reduce returns in e-commerce and retail.
  • Made-to-Measure Clothing: personalized measurement data for custom garment production at scale.
  • Research and Academic Programs: standardized anthropometric data collection without expensive on-site equipment.
Wireframe 3D body model inside measurement rings, representing body measurementsBody Measurements
Heart rate symbol and smartwatch, representing body composition scanning for wellness programsHealth Metrics
T-shirt with S, M, L and XL size options, representing ready-to-wear size recommendationsReady-to-Wear Sizing
Tailor's dress form with a measuring tape and scissors, representing made-to-measure clothingMade-to-Measure Clothing

Frequently Asked Questions

Can you measure your body with a smartphone?

Yes. A smartphone with the Size Stream app captures a full body scan in seconds and returns 240+ body measurements in less than a minute. The app uses computer vision, machine learning, and AI to read two guided poses, then builds a 3D body model. No extra sensors or hardware are required.

How accurate is mobile body scanning?

Mobile body scanning produces consistent, repeatable measurements suitable for fit, sizing, and progress tracking. Accuracy depends on lighting, pose, and device, and the app guides users through each variable to minimize error. For the tightest tolerances, Size Stream also offers on-site hardware. Independent evaluation protocols such as ISO 20685-1:2018 define how body dimensions from 3D scans are assessed.

Does body scanning work on iPhone and Android devices?

Yes. Body scanning works on iPhone and Android phones as well as certain iPads. The app returns the standard 240+ measurement set in the same structure regardless of platform. Scan quality depends on lighting and pose, which the app guides users to manage.

Put body data to work — for your brand or your health.

Talk to our team about 3D body scanning, fit, and body composition.