# MKSAP 19 vs Oakstone CMEssentials

The clearest difference is iOS requirement: MKSAP 19 at 12.0 against Oakstone CMEssentials's 15.6. 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.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 8, 2026.

## The numbers

| Metric | MKSAP 19 | Oakstone CMEssentials |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (37 ratings)](https://appshunter.io/ios/app/mksap-19/id1577787036/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 70.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 423 MB | 81 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [American College of Physicians](https://appshunter.io/developer/371090673) | [Oakstone Publishing, LLC](https://appshunter.io/developer/619447897) |

## What reviewers say

### MKSAP 19

[App page](https://appshunter.io/ios/app/mksap-19/id1577787036)

This medical education app provides access to current information in internal medicine and subspecialties. It includes exam-like questions and patient-based clinical scenarios to help physicians assess and update their knowledge. Offline access to content is available for subscribers.

**Highlights:** Current internal medicine information, 1,200 exam-like multiple-choice questions, Patient-based clinical scenarios, Offline content access, Syncs with online version, Enhances learning with figures, charts, and tables

**Features:** Vision Pro support

**In-app purchases:** none


### Oakstone CMEssentials

[App page](https://appshunter.io/ios/app/oakstone-cmessentials/id6747255138)

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

**In-app purchases:** none


## Frequently asked questions

### Is MKSAP 19 free?

MKSAP 19 is free to download, with no in-app purchases.

### Is Oakstone CMEssentials free?

Oakstone CMEssentials is free to download, with no in-app purchases.

### Do MKSAP 19 or Oakstone CMEssentials have ads?

Neither MKSAP 19 nor Oakstone CMEssentials shows ads.

### Which is updated more often, MKSAP 19 or Oakstone CMEssentials?

MKSAP 19 ships an update every 2 months, and Oakstone CMEssentials every 2 months. Most recently, MKSAP 19 was updated on October 8, 2026 and Oakstone CMEssentials on October 8, 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.*