# OrthoQuant MD vs SpineRef

The clearest difference is in-app purchases: SpineRef at none against OrthoQuant MD's 2. SpineRef also leads on update cadence (every 10 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OrthoQuant MD sells 2 in-app purchases, starting at $1.99 per month. SpineRef asks for nothing beyond the download.

OrthoQuant MD ships an update every 3 months, SpineRef every 10 days. The most recent releases landed on October 28, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OrthoQuant MD | SpineRef |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 49 MB | 61 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [ILKER EREN](https://appshunter.io/developer/1861402477) | [Platform.AI Inc](https://appshunter.io/developer/1895482359) |

## What reviewers say

### OrthoQuant MD

[App page](https://appshunter.io/ios/app/orthoquant-md/id6756558910)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OrthoQuant MD Pro | $1.99 | per month |
| OrthoQuant MD Pro | $19.99 | per year |


### SpineRef

[App page](https://appshunter.io/ios/app/spineref/id6777927922)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OrthoQuant MD free?

OrthoQuant MD is free to download, with in-app purchases available.

### Is SpineRef free?

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

### Do OrthoQuant MD or SpineRef have ads?

Neither OrthoQuant MD nor SpineRef shows ads.

### Which is updated more often, OrthoQuant MD or SpineRef?

OrthoQuant MD ships an update every 3 months, and SpineRef every 10 days. Most recently, OrthoQuant MD was updated on October 28, 2026 and SpineRef on October 12, 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.*