# CobbAngleApp vs ATEC Spine

The clearest difference is review sentiment: ATEC Spine at 100% against CobbAngleApp's 33%. ATEC Spine also leads on price (Free vs $5.99) and rating (5.0 vs 1.0). CobbAngleApp's advantage is chart position (#179 vs unranked) and device support (4 vs 2). On ads, in-app purchases and iOS requirement there is nothing between them.

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

ATEC Spine holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: ATEC Spine has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of CobbAngleApp's written reviews are positive against 100% of ATEC Spine's.

CobbAngleApp ships an update every 10 months, ATEC Spine every 2 months. The most recent releases landed on October 7, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | CobbAngleApp | ATEC Spine |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/cobbangleapp/id1338225107/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/atec-spine/id1367645576/reviews)** |
| Number of ratings | 1 | **8** |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Best chart rank | **#179** | — |
| Size | 2 MB | 65 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [ORTHOPRACTIS.COM SINGLE MEMBER P.C.](https://appshunter.io/developer/1286360877) | [Alphatec Holdings, Inc.](https://appshunter.io/developer/1367645575) |

## What reviewers say

### CobbAngleApp

[App page](https://appshunter.io/ios/app/cobbangleapp/id1338225107)

**Currently charting:** #179 Top Paid · Medical (US App Store)

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

**In-app purchases:** none


### ATEC Spine

[App page](https://appshunter.io/ios/app/atec-spine/id1367645576)

This medical app offers surgeons and sales teams quick, secure access to essential spine surgery resources. It features surgical videos, technique guides, product specs, and case studies, accessible even offline.

**Highlights:** Surgical videos, Technique guides, Product specifications, Case studies, Offline access, Powerful search

**In-app purchases:** none


## Frequently asked questions

### Is CobbAngleApp free?

CobbAngleApp costs $5.99, with no in-app purchases.

### Is ATEC Spine free?

ATEC Spine is free to download, with no in-app purchases.

### Which has better reviews, CobbAngleApp or ATEC Spine?

ATEC Spine is rated higher. CobbAngleApp averages 1.0 out of 5 from 1 ratings, while ATEC Spine averages 5.0 from 8 ratings.

### Do CobbAngleApp or ATEC Spine have ads?

Neither CobbAngleApp nor ATEC Spine shows ads.

### Which is updated more often, CobbAngleApp or ATEC Spine?

CobbAngleApp ships an update every 10 months, and ATEC Spine every 2 months. Most recently, CobbAngleApp was updated on October 7, 2026 and ATEC Spine on September 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*