# Perseus vs CarboFix Spine

The clearest difference is update cadence: CarboFix Spine at every 9 days against Perseus's every 3 months. CarboFix Spine also leads on device support (3 vs 1). Perseus's advantage is iOS requirement (9.3 vs 12.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Perseus ships an update every 3 months, CarboFix Spine every 9 days. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Perseus | CarboFix Spine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/carbofix-spine/id6468366704/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 71 MB | 90 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Orthokey Italia s.r.l.](https://appshunter.io/developer/899950138) | [shtibel](https://appshunter.io/developer/798863049) |

## What reviewers say

### Perseus

[App page](https://appshunter.io/ios/app/perseus/id899950135)

**Features:** macOS Compatibility

**In-app purchases:** none


### CarboFix Spine

[App page](https://appshunter.io/ios/app/carbofix-spine/id6468366704)

Explore innovative carbon fiber spine implants and their benefits. Access product portfolios, documentation, procedure details, and training materials. Learn about available sizes and indications for patient treatment.

**Highlights:** Product portfolio exploration, Implant advantages, Documentation browsing, Available sizes and indications, Procedure steps, Training materials

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Perseus free?

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

### Is CarboFix Spine free?

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

### Do Perseus or CarboFix Spine have ads?

Neither Perseus nor CarboFix Spine shows ads.

### Which is updated more often, Perseus or CarboFix Spine?

Perseus ships an update every 3 months, and CarboFix Spine every 9 days. Most recently, Perseus was updated on October 7, 2026 and CarboFix Spine on October 3, 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.*