# CobbAngleApp

> Medical app for orthopedic surgeons to measure scoliosis Cobb angles from X-rays. (iPhone/iPad app by ORTHOPRACTIS.COM SINGLE MEMBER P.C..)

- Source: https://appshunter.io/ios/app/cobbangleapp/id1338225107 (this page in markdown: same URL + `.md`)
- Developer: [ORTHOPRACTIS.COM SINGLE MEMBER P.C.](https://appshunter.io/developer/1286360877)
- Category: Medical, Utilities
- Price: $5.99 (on sale, was $29.99)
- Rating: 1.00/5 from 1 App Store ratings · 3 written reviews indexed
- Age rating: 17+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2018-01-23
- Data updated: 2026-08-18
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/cobbangleapp/id1338225107/reviews.md

## What is CobbAngleApp?

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.

## Key features

- Import medical images
- Calculate Cobb angles by marking points
- Categorize scoliosis severity
- Extended measurement mode
- Save measurements and results
- Independent of image inclination

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/cobbangleapp/id1338225107/reviews.md

### 1/5 — Put it back!

*2026-07-22*

This new version is terrible. The adjustment tools are enormous and they cover half the area you were trying to visualize. Put it back the way it used to be. I find this app unusable now

### 4/5 — Piora

*2026-06-12*

O app piorou depois da atualização

### 1/5 — 很差，根本使用不了

*2022-04-05*

很差，根本使用不了

**Developer response:** Please visit developer site to assist you further about issues during use .Please feel free to support you personally for suggestions  or misunderstandings!

## Frequently asked questions about CobbAngleApp

### What is CobbAngleApp used for?

CobbAngleApp is a medical software designed for orthopedic surgeons to accurately measure spinal deformities, specifically Cobb angles, from X-ray images. It helps in quantifying scoliosis magnitude and monitoring treatment effectiveness.

### How does CobbAngleApp calculate Cobb angles?

The app allows users to import medical images and then mark four points on each spine. Based on these points, CobbAngleApp calculates the Cobb angle and categorizes the scoliosis as mild, moderate, or severe if values are outside normal ranges.

### Can CobbAngleApp help with difficult measurements?

Yes, CobbAngleApp offers an extended mode that includes drawing a vertical reference line through the patient's sacrum. This feature aids in identifying end vertebrae more easily and minimizes inter-observer errors, especially when the actual end vertebra is unclear.

### Does CobbAngleApp account for image tilt?

Yes, CobbAngleApp has a specially developed module that allows for accurate measurements regardless of image inclination. This means users do not need to worry about the tilting of the picture or X-ray for precise results.

### What devices is CobbAngleApp available on?

CobbAngleApp is supported on Mac, iPhone, iPad, iPod, and the Reality Device. This broad compatibility ensures accessibility for various healthcare professional setups.

### How often is CobbAngleApp updated?

The latest version of CobbAngleApp is 4.5, and it was last updated on April 30, 2026. This indicates a commitment to maintaining and improving the software.

### Is CobbAngleApp suitable for primary image interpretation?

No, CobbAngleApp is indicated for assisting healthcare professionals and is not for primary image interpretation. Clinical judgment and experience are required to properly use the software, and all output must be clinically reviewed for plausibility.

### Where can I find tutorial videos for CobbAngleApp?

Tutorial videos for CobbAngleApp are available on the developer's website, www.orthopractis.com. These resources can help users understand how to best utilize the app's features.

## Version history (last 5 releases)

### 5.0 — 2026-07-28

Version 5.0 introduces a redesigned measurement workspace while preserving the established Standard and Extended workflows and the rounded acute Cobb-angle calculation.

• Consent and legal information now appear at each fresh app launch, with direct links to support, the Privacy Policy, and Terms of Use.
• A rebuilt concentric-circle selector lets you position the target and register its fixed center by double-tapping inside the target or using the Point button, reducing unintended movement.
• Step-by-step anatomical guidance identifies the current landmark, explains its location, and previews the point to select next.
• New translucent, compact panels include symbol controls, hide/show buttons, expandable sections, and scrollable menus.
• Image import from Photos, Files, and Camera now uses one orientation-correcting, size-normalizing workflow. Point positions remain consistent while panning, zooming, resizing, and exporting.
• Added fit, zoom, pan, lock, undo, backtrack, point editing, deletion, and one-image-pixel nudge controls.
• Added annotated image sharing, Photos saving where supported, text reports, and CSV point export.
• Added active-session recovery after current-launch consent and optimized layouts for iPhone, iPad, and Apple Vision Pro.
• General stability, privacy, and interface improvements.

### 4.5 — 2026-04-30

update the ui window and new technique of cross-hairs  for point selection of interest

### 4.0 — 2022-03-29

updated for iOS 14.5, bugs fixed

### 2.5 — 2020-01-21

Update for  iOS 13.2 and bugs fixed

### 2.0 — 2019-09-26

update for iOS 13.0

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## More apps by ORTHOPRACTIS.COM SINGLE MEMBER P.C.

- [NeckShaftAngle App](https://appshunter.io/ios/app/neckshaftangle-app/id1286360878)
- [AcetabularIndex](https://appshunter.io/ios/app/acetabularindex/id1292735334)
- [CenterEdgeAngleApp](https://appshunter.io/ios/app/centeredgeangleapp/id1294128204)
- [SharpAngleApp](https://appshunter.io/ios/app/sharpangleapp/id1295934301)
- [ReimersIndexApp](https://appshunter.io/ios/app/reimersindexapp/id1299545292)
- [AcetabularDepthRatioApp](https://appshunter.io/ios/app/acetabulardepthratioapp/id1312655753)

All apps by ORTHOPRACTIS.COM SINGLE MEMBER P.C.: https://appshunter.io/developer/1286360877

## Related topics

[cobb angle](https://appshunter.io/ios/topics/cobb-angle)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-18.*