# AAOS Code vs OnCall.AI

The clearest difference is review sentiment: OnCall.AI at 96% against AAOS Code's 0%. OnCall.AI also leads on rating (4.9 vs 2.3) and update cadence (weekly vs every 3 months). AAOS Code's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

OnCall.AI holds the better App Store score, 4.9 against 2.3. That said, the two scores are not equally well evidenced: OnCall.AI has 44 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of AAOS Code's written reviews are positive against 96% of OnCall.AI's.

AAOS Code ships an update every 3 months, OnCall.AI weekly. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | AAOS Code | OnCall.AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/aaos-code-x-lite-web/id1502942520/reviews) | **[4.9 (44 ratings)](https://appshunter.io/ios/app/oncallai/id6742172069/reviews)** |
| Number of ratings | 3 | **44** |
| Positive reviews | 0.0% of reviews | **95.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | Free |
| Size | 148 MB | 42 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Computer Architechs International Corporation](https://appshunter.io/developer/412546531) | [OnCall.AI, Inc](https://appshunter.io/developer/1797243180) |

## What reviewers say

### AAOS Code

[App page](https://appshunter.io/ios/app/aaos-code-x-lite-web/id1502942520)

This medical reference app provides orthopaedic CPT codes, ICD-10 codes, and RVUs for quick access on mobile devices. It allows users to search by code or body site, email patient information with codes, calculate Work RVUs, and save favorite codes.

**Highlights:** Orthopaedic CPT codes, ICD-10 codes, RVU calculations, Search by code and body site, Email patient information, Favorite code tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### OnCall.AI

[App page](https://appshunter.io/ios/app/oncallai/id6742172069)

This application automates telehealth processes like transcription, coding, and billing. It helps healthcare professionals save time and increase revenue by streamlining documentation and collaboration. The platform is HIPAA-compliant and designed for seamless integration into existing workflows.

**Highlights:** AI-powered transcription, Automated coding and billing, Real-time AI assistance, Seamless team collaboration, HIPAA-compliant and secure, Workflow efficiency enhancement

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AAOS Code free?

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

### Is OnCall.AI free?

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

### Which has better reviews, AAOS Code or OnCall.AI?

OnCall.AI is rated higher. AAOS Code averages 2.3 out of 5 from 3 ratings, while OnCall.AI averages 4.9 from 44 ratings.

### Do AAOS Code or OnCall.AI have ads?

Neither AAOS Code nor OnCall.AI shows ads.

### Which is updated more often, AAOS Code or OnCall.AI?

AAOS Code ships an update every 3 months, and OnCall.AI weekly. Most recently, AAOS Code was updated on October 2, 2026 and OnCall.AI on October 7, 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.*