Comparison

CobbAngleApp vs BackSCNR

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

Head to head
About

CobbAngleApp

This medical software assists orthopedic surgeons in accurately measuring spinal deformities from X-ray images. It simplifies the process of calculating Cobb angles, categorizing scoliosis severity, and monitoring treatment progress. The app offers advanced features to minimize measurement errors and save results for later review.

Highlights
  • Import medical images
  • Calculate Cobb angles by marking points
  • Categorize scoliosis severity
  • Extended measurement mode
  • Save measurements and results
  • Independent of image inclination
Read full description

Cobb method is considered the standard for measuring curve size in scoliosis. Cobb angles are always measured from the superior end plate of the most cephalad end vertebra to the inferior end plate of the most caudal end vertebra in the curve. Meticulous line drawings and precise measurements is paramount importance in order to quantify the magnitude of spinal deformities and monitor the success or failure of treatment for scoliosis. The CobbAngleApp is medical software aimed for orthopaedic surgeons, providing tools that allow doctors to: -Securely import medical images directly from the camera or stored photos. -Offers a very convenient way to determine the most accurate possibly way at once. By marking four points at the same X-ray, at each spine the App calculates the Cobb angle. In cases where values are out of normal ranges, the scoliosis is categorized according to measured angle as mild, moderate, severe. To simplify the process and to minimize inter-observer errors usually by not selecting the actual end vertebra, the app offers also in ext mode the ability to draw the vertical reference line through the patient’s sacrum and to identify more easily the end vertebrae s (ext method). -Save the planned images, the measured values and results compared by normal reference databases, for later review or consultation. -The app also is independent from errors produced by image inclination. Especially developed module allows the user to measure accurately without to worry about the tilting of the picture or the X-ray. All information received from the software output must be clinically reviewed regarding its plausibility before patient treatment! CobbAngleApp indicated for assisting healthcare professionals. Clinical judgment and experience are required to properly use the software. The software is not for primary image interpretation. In a busy everyday practice, the examiner have to draw lines in X-rays or in clinical settings, this it is time consuming and cumbersome. Accessory instruments like protractors, hinged goniometers, well sharp pencils, rulers or even transparent papers must be available. The app offers a very convenient and also accurate way to perform most common radiographic measurements for spine, in a blink of an eye in front of your screen. The build in feature of the app, allows results to be categorized may help decide what could be considered normal or pathologic. The app is not a simple goniometer, is an enhanced product which helps to monitor objectively the course of the treatment and evaluate optimally the spine. This App is particular useful especially in clinical settings where you need a quick results without losing time. Please see tutorial videos at the developer’s web site www.orthopractis.com Reference databases 1. Cobb JR. Outline for the study of scoliosis. The American Academy of Orthopedic Surgeons Instructional Course Lectures. Vol. 5. Ann Arbor, MI: Edwards; 1948.

About

BackSCNR

This radiation-free tool uses surface topography to screen and monitor scoliosis in adolescents. It captures 3D torso scans, analyzes asymmetries, and estimates curve angles to support clinical decision-making.

Highlights
  • Radiation-free scoliosis screening
  • 3D torso capture with TrueDepth or Structure Sensor
  • Asymmetry analysis and curve angle estimation
  • Supports clinical decision-making
  • Rapid analysis via secure web platform
Features
Read full description

BackSCNR (Back Scanner) is a scoliosis screening and monitoring support tool designed to aid in the management of Adolescent Idiopathic Scoliosis (AIS). Using advanced Surface Topography (ST), the app provides a radiation-free and non-invasive way to assess the 3D shape of the human torso, offering a safe alternative for frequent monitoring without exposure to harmful X-rays. Developed through years of leading academic research, BackSCNR is registered with Health Canada as a Class I Software as a Medical Device (SaMD). It is intended for use in individuals aged 10–18 years to assist clinicians in quantifying torso asymmetries and estimating curve angles associated with AIS. Key Features: - Flexible 3D Torso Capture: Capture high-accuracy 3D scans using either the Structure Sensor accessory or your iPhone’s built-in TrueDepth camera. - Asymmetry Analysis: Aids in identifying and tracking torso asymmetries over time. - Clinical Support: Provides detailed metrics, including estimated Cobb angles and deviation color maps, to support clinical decision-making. - Rapid Results: Upload and process models to receive analysis within minutes on our secure web platform. How it Works: 1. Select Your Hardware: The app automatically detects if a Structure Sensor is connected and will default to it for scanning. If no sensor is detected, the app defaults to the iPhone’s TrueDepth camera. 2. Capture the Scan: Follow the in-app guidance to take a 3D scan of the patient's torso. 3. Analyze & Report: Upload the data to the secure BackSCNR website for automated analysis and reporting. Compatibility: - TrueDepth:** Compatible with TrueDepth-enabled iPhones (iPhone X and newer). - OS: Supported on modern iOS devices (iPhone X and later) and compatible iPads. - Sensors: Optimized for Structure Sensor 3; also supports Mark II and Pro models. For more details, visit https://backscnr.com Disclaimer: BackSCNR is intended to aid in the screening and management of postural conditions and is not a substitute for professional medical diagnosis or treatment planning. Always seek the advice of a physician or other qualified healthcare provider with any questions regarding a medical condition. Use of the device for diagnosis should only be done in consultation with a qualified healthcare professional.

Screenshots

CobbAngleApp4 screens
BackSCNR4 screens

Verdict

The call

The clearest difference is review sentiment: BackSCNR at 100% against CobbAngleApp's 33%. BackSCNR also leads on price (Free vs $5.99) and rating (5.0 vs 1.0). On ratings volume, ads, in-app purchases 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

BackSCNR is free to download; CobbAngleApp costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BackSCNR holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 33% of CobbAngleApp's written reviews are positive against 100% of BackSCNR's.

UpkeepUpdate frequency

CobbAngleApp ships an update every 10 months, BackSCNR every 2 months. The most recent releases landed on October 7, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 4 level
CobbAngleApp versus BackSCNR: the parameters behind the verdict, then further details
ParameterCobbAngleAppBackSCNR
Price$5.99Free — better
Rating1.0 (1 ratings)5.0 (2 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings12 — better
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone, iPad, iPod
Requires iOS17.015.4 — better
Further details — not scored
Size2 MB42 MB
Age rating17+17+
DeveloperORTHOPRACTIS.COM SINGLE MEMBER P.C.BackSCNR Inc.

Customer experience

CobbAngleApp

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

BackSCNR

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CobbAngleApp

No in-app purchases

None

BackSCNR

No in-app purchases

Questions

Is CobbAngleApp free?
CobbAngleApp costs $5.99, with no in-app purchases.
Is BackSCNR free?
BackSCNR is free to download, with no in-app purchases.
Which has better reviews, CobbAngleApp or BackSCNR?
BackSCNR is rated higher. CobbAngleApp averages 1.0 out of 5 from 1 ratings, while BackSCNR averages 5.0 from 2 ratings.
Do CobbAngleApp or BackSCNR have ads?
Neither CobbAngleApp nor BackSCNR shows ads.
Which is updated more often, CobbAngleApp or BackSCNR?
CobbAngleApp ships an update every 10 months, and BackSCNR every 2 months. Most recently, CobbAngleApp was updated on October 7, 2026 and BackSCNR on September 23, 2026.

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