# SIR Guidelines vs MKSAP 19

The clearest difference is rating: SIR Guidelines at 5.0 against MKSAP 19's 4.1. SIR Guidelines also leads on update cadence (every 3 weeks vs every 2 months). MKSAP 19's advantage is iOS requirement (12.0 vs 15.1). On price, ratings volume, 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.

SIR Guidelines holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 23 and 38 respectively.

SIR Guidelines ships an update every 3 weeks, MKSAP 19 every 2 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SIR Guidelines | MKSAP 19 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (23 ratings)](https://appshunter.io/ios/app/sir-guidelines/id1552455529/reviews)** | [4.1 (38 ratings)](https://appshunter.io/ios/app/mksap-19/id1577787036/reviews) |
| Number of ratings | 23 | **38** |
| Positive reviews | — | 70.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 28 MB | 423 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Society of Interventional Radiology](https://appshunter.io/developer/508819578) | [American College of Physicians](https://appshunter.io/developer/371090673) |

## What reviewers say

### SIR Guidelines

[App page](https://appshunter.io/ios/app/sir-guidelines/id1552455529)

Access evidence-based recommendations and tools for healthcare professionals. Features an interactive calculator for scenario-specific anticoagulation and antibiotic advice, simplifying clinical decision-making at the point of care.

**Highlights:** Access published guidelines and statements, Interactive periprocedural recommendation calculator, Scenario-specific anticoagulation and antibiotic recommendations, Tailored recommendations based on patient and procedural risk, Clinical Practice Guidelines for IVC Filters, Continual updates with new guidelines and tools

**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 SIR Guidelines free?

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

### Is MKSAP 19 free?

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

### Which has better reviews, SIR Guidelines or MKSAP 19?

SIR Guidelines is rated higher. SIR Guidelines averages 5.0 out of 5 from 23 ratings, while MKSAP 19 averages 4.1 from 38 ratings.

### Do SIR Guidelines or MKSAP 19 have ads?

Neither SIR Guidelines nor MKSAP 19 shows ads.

### Which is updated more often, SIR Guidelines or MKSAP 19?

SIR Guidelines ships an update every 3 weeks, and MKSAP 19 every 2 months. Most recently, SIR Guidelines was updated on October 24, 2026 and MKSAP 19 on October 21, 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.*