# Liver Surgery AP vs CHIR+

The clearest difference is update cadence: CHIR+ at weekly against Liver Surgery AP's every 9 months. Liver Surgery AP's advantage is iOS requirement (9.1 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Liver Surgery AP ships an update every 9 months, CHIR+ weekly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Liver Surgery AP | CHIR+ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | Free | — |
| Size | 65 MB | 7 MB |
| Requires iOS | **9.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Assistance Publique-Hopitaux de Paris](https://appshunter.io/developer/508021332) | [John Libbey Eurotext](https://appshunter.io/developer/503890972) |

## What reviewers say

### Liver Surgery AP

[App page](https://appshunter.io/ios/app/liver-surgery-ap-hp/id927415100)

This medical app aids surgeon-patient communication by providing a 3D interactive model of the liver. It helps visualize pathologies and treatment plans, enhancing patient comprehension and facilitating shared medical decisions. It can also serve as an academic tool for presentations.

**Highlights:** Interactive 3D liver model, Visualize pathologies and lesions, Explain treatment strategies, Simulate surgical procedures, Capture and email anatomical snapshots, Academic presentation tool

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

**In-app purchases:** none


### CHIR+

[App page](https://appshunter.io/ios/app/chir-plus/id6667116201)

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

**In-app purchases:** none


## Frequently asked questions

### Is Liver Surgery AP free?

Liver Surgery AP is free to download, with no in-app purchases.

### Is CHIR+ free?

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

### Do Liver Surgery AP or CHIR+ have ads?

Neither Liver Surgery AP nor CHIR+ shows ads.

### Which is updated more often, Liver Surgery AP or CHIR+?

Liver Surgery AP ships an update every 9 months, and CHIR+ weekly. Most recently, Liver Surgery AP was updated on November 1, 2026 and CHIR+ on November 4, 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.*