# AO Surgery Reference vs Paragon Mobile

The clearest difference is rating: AO Surgery Reference at 4.4 against Paragon Mobile's 3.4. Paragon Mobile's advantage is review sentiment (100% vs 86%) and iOS requirement (9.3 vs 13.0). On price, ratings volume, update cadence and ads 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 3.4. Both are backed by a comparable volume of ratings — 14 and 5 respectively. Written reviews complicate that: 86% of AO Surgery Reference's written reviews are positive against 100% of Paragon Mobile's, so the app with the better star average is not the one people write more warmly about.

AO Surgery Reference ships an update every 6 months, Paragon Mobile every 9 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AO Surgery Reference | Paragon Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (14 ratings)](https://appshunter.io/ios/app/ao-surgery-reference/id403961165/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/paragon-mobile-smartphone/id879308674/reviews) |
| Number of ratings | **14** | 5 |
| Positive reviews | 85.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 9 months |
| Monetization | Free | Free |
| Size | 1 MB | 13 MB |
| Requires iOS | 13.0 | **9.3** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [AO Foundation](https://appshunter.io/developer/399757056) | [Allscripts Healthcare Solutions Inc](https://appshunter.io/developer/907523570) |

## 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


### Paragon Mobile

[App page](https://appshunter.io/ios/app/paragon-mobile-smartphone/id879308674)

Provides clinicians with secure, anytime access to patient clinical data from their iPhone. This mobile solution enhances workflow efficiency for better patient care and business health by allowing untethered access to information.

**Highlights:** Rapid access to clinical data, Untethered clinician access, Efficient patient rounding, Real-time data sharing with patients, User-defined patient data views, Audit reports of viewed data

**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 Paragon Mobile free?

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

### Which has better reviews, AO Surgery Reference or Paragon Mobile?

AO Surgery Reference is rated higher. AO Surgery Reference averages 4.4 out of 5 from 14 ratings, while Paragon Mobile averages 3.4 from 5 ratings.

### Do AO Surgery Reference or Paragon Mobile have ads?

Neither AO Surgery Reference nor Paragon Mobile shows ads.

### Which is updated more often, AO Surgery Reference or Paragon Mobile?

AO Surgery Reference ships an update every 6 months, and Paragon Mobile every 9 months. Most recently, AO Surgery Reference was updated on October 23, 2026 and Paragon Mobile on October 24, 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.*