# Cobb Angle Pro Spine X vs Skeletal Plan

The clearest difference is in-app purchases: Skeletal Plan at none against Cobb Angle Pro Spine X's 4. Skeletal Plan also leads on iOS requirement (15.5 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cobb Angle Pro Spine X sells 4 in-app purchases, starting at $4.99 per 7 days. Skeletal Plan asks for nothing beyond the download.

Cobb Angle Pro Spine X ships an update every 5 days, Skeletal Plan every 9 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Cobb Angle Pro Spine X | Skeletal Plan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/cobb-angle-pro-spine-x-ray/id6768968449/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 111 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [4AI Info Tech](https://appshunter.io/developer/1801898443) | [N2 Medical Ltd](https://appshunter.io/developer/6782600512) |

## What reviewers say

### Cobb Angle Pro Spine X

[App page](https://appshunter.io/ios/app/cobb-angle-pro-spine-x-ray/id6768968449)

This app provides clinical measurement tools for spine X-rays and joint range of motion. It offers AI-assisted landmark suggestions for spine measurements and multiple modes for capturing joint angles from photos or live sensor data. Users can organize case records and export annotated reports.

**Highlights:** Cobb angle measurement on spine X-rays, AI-assisted landmark suggestions, Sagittal Vertical Axis (SVA) alignment, Digital goniometer for joint ROM, Photo, camera, and live sensor measurement, Patient history and ROM trends, Annotated PDF and JPEG exports

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cobb Angle Pro Weekly | $4.99 | per 7 days |
| Weekly Pro | $5.99 | per 7 days |
| Cobb Angle Pro Monthly | $9.99 | per month |
| Cobb Angle Pro Yearly | $79.99 | per year |


### Skeletal Plan

[App page](https://appshunter.io/ios/app/skeletal-plan/id6782600510)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cobb Angle Pro Spine X free?

Cobb Angle Pro Spine X is free to download, with in-app purchases available.

### Is Skeletal Plan free?

Skeletal Plan is free to download, with no in-app purchases.

### Do Cobb Angle Pro Spine X or Skeletal Plan have ads?

Neither Cobb Angle Pro Spine X nor Skeletal Plan shows ads.

### Which is updated more often, Cobb Angle Pro Spine X or Skeletal Plan?

Cobb Angle Pro Spine X ships an update every 5 days, and Skeletal Plan every 9 days. Most recently, Cobb Angle Pro Spine X was updated on October 31, 2026 and Skeletal Plan on October 31, 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.*