# OMT Medical Reference vs ABOS KSB+

The clearest difference is update cadence: ABOS KSB+ at monthly against OMT Medical Reference's every 4 months. OMT Medical Reference's advantage is iOS requirement (10.0 vs 15.0). 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.

OMT Medical Reference ships an update every 4 months, ABOS KSB+ monthly. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OMT Medical Reference | ABOS KSB+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/abos-ksb-plus/id6475365567/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Free |
| Size | 86 MB | 41 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Wee L Lam](https://appshunter.io/developer/1465481576) | [ABOS](https://appshunter.io/developer/1724062579) |

## What reviewers say

### OMT Medical Reference

[App page](https://appshunter.io/ios/app/omt-medical-reference/id1465481577)

**Features:** macOS Compatibility

**In-app purchases:** none


### ABOS KSB+

[App page](https://appshunter.io/ios/app/abos-ksb-plus/id6475365567)

This app enables orthopaedic surgery residents in ACGME-accredited programs to request assessments for surgical skills and professional behavior. It facilitates formative feedback and encourages residents to take charge of their educational development.

**Highlights:** Surgical skills assessment requests, Professional behavior assessment requests, Formative feedback provision, Resident education ownership, ACGME program participation

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

**In-app purchases:** none


## Frequently asked questions

### Is OMT Medical Reference free?

OMT Medical Reference is free to download, with no in-app purchases.

### Is ABOS KSB+ free?

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

### Do OMT Medical Reference or ABOS KSB+ have ads?

Neither OMT Medical Reference nor ABOS KSB+ shows ads.

### Which is updated more often, OMT Medical Reference or ABOS KSB+?

OMT Medical Reference ships an update every 4 months, and ABOS KSB+ monthly. Most recently, OMT Medical Reference was updated on October 26, 2026 and ABOS KSB+ on October 12, 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.*