# NACSELD vs MKSAP 19

The clearest difference is update cadence: MKSAP 19 at every 2 months against NACSELD's every 40 months. 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.

NACSELD ships an update every 40 months, MKSAP 19 every 2 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | NACSELD | MKSAP 19 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (38 ratings)](https://appshunter.io/ios/app/mksap-19/id1577787036/reviews)** |
| Number of ratings | — | **38** |
| Positive reviews | — | 70.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 28 MB | 423 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Jasmohan Bajaj](https://appshunter.io/developer/589478724) | [American College of Physicians](https://appshunter.io/developer/371090673) |

## What reviewers say

### NACSELD

[App page](https://appshunter.io/ios/app/nacseld/id1377826955)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is NACSELD free?

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

### Is MKSAP 19 free?

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

### Do NACSELD or MKSAP 19 have ads?

Neither NACSELD nor MKSAP 19 shows ads.

### Which is updated more often, NACSELD or MKSAP 19?

NACSELD ships an update every 40 months, and MKSAP 19 every 2 months. Most recently, NACSELD was updated on November 2, 2026 and MKSAP 19 on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*