# AO Surgery Reference vs Biomet Orthosize Templating

The clearest difference is rating: AO Surgery Reference at 4.4 against Biomet Orthosize Templating's 4.0. AO Surgery Reference also leads on ratings volume (14 vs 1) and device support (3 vs 1). Biomet Orthosize Templating's advantage is iOS requirement (6.0 vs 13.0). On price, update cadence, 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.

AO Surgery Reference holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: AO Surgery Reference has 14 ratings behind it against 1, so its average is the more settled of the two.

AO Surgery Reference ships an update every 6 months, Biomet Orthosize Templating every 5 months. The most recent releases landed on October 11, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | AO Surgery Reference | Biomet Orthosize Templating |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (14 ratings)](https://appshunter.io/ios/app/ao-surgery-reference/id403961165/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/biomet-orthosize-templating/id603548641/reviews) |
| Number of ratings | **14** | 1 |
| Positive reviews | 85.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 1 MB | 105 MB |
| Requires iOS | 13.0 | **6.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 17+ | 12+ |
| Developer | [AO Foundation](https://appshunter.io/developer/399757056) | [Zimmer, Inc](https://appshunter.io/developer/496317854) |

## What reviewers say

### AO Surgery Reference

[App page](https://appshunter.io/ios/app/ao-surgery-reference/id403961165)

Access a comprehensive online repository of surgical knowledge for fracture management. It provides detailed guidance on diagnosis, treatment, and aftercare for numerous fracture types, supported by extensive illustrations and expert review.

**Highlights:** 353 fracture types covered, 172 surgical approaches, 1222 surgical procedures, Over 30,000 illustrations, Feline, canine, and equine fracture care, Powerful search function

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

**In-app purchases:** none


### Biomet Orthosize Templating

[App page](https://appshunter.io/ios/app/biomet-orthosize-templating/id603548641)

This application assists healthcare professionals in pre-operative orthopedic surgery planning. It allows for overlaying prosthesis templates on radiological images, performing measurements, and positioning templates. It functions as a companion to a desktop application for reviewing and modifying saved images.

**Highlights:** Pre-operative orthopedic surgery planning, Overlay prosthesis templates on radiological images, Perform measurements on images, Position templates, Review and modify saved images, Companion app for desktop software

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AO Surgery Reference free?

AO Surgery Reference is free to download, with no in-app purchases.

### Is Biomet Orthosize Templating free?

Biomet Orthosize Templating is free to download, with no in-app purchases.

### Which has better reviews, AO Surgery Reference or Biomet Orthosize Templating?

AO Surgery Reference is rated higher. AO Surgery Reference averages 4.4 out of 5 from 14 ratings, while Biomet Orthosize Templating averages 4.0 from 1 ratings.

### Do AO Surgery Reference or Biomet Orthosize Templating have ads?

Neither AO Surgery Reference nor Biomet Orthosize Templating shows ads.

### Which is updated more often, AO Surgery Reference or Biomet Orthosize Templating?

AO Surgery Reference ships an update every 6 months, and Biomet Orthosize Templating every 5 months. Most recently, AO Surgery Reference was updated on October 11, 2026 and Biomet Orthosize Templating on September 22, 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.*