# IDSA Practice Guidelines vs SIR Guidelines

The clearest difference is update cadence: SIR Guidelines at every 3 weeks against IDSA Practice Guidelines's every 7 months. IDSA Practice Guidelines's advantage is ratings volume (559 vs 23) and iOS requirement (12.0 vs 15.1). On price, rating, 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 4.8. That said, the two scores are not equally well evidenced: IDSA Practice Guidelines has 559 ratings behind it against 23, so its average is the more settled of the two.

IDSA Practice Guidelines ships an update every 7 months, SIR Guidelines every 3 weeks. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | IDSA Practice Guidelines | SIR Guidelines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (559 ratings)](https://appshunter.io/ios/app/idsa-practice-guidelines/id1478886375/reviews) | **[5.0 (23 ratings)](https://appshunter.io/ios/app/sir-guidelines/id1552455529/reviews)** |
| Number of ratings | **559** | 23 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 105 MB | 28 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Infectious Diseases Society of America](https://appshunter.io/developer/1477996603) | [Society of Interventional Radiology](https://appshunter.io/developer/508819578) |

## What reviewers say

### IDSA Practice Guidelines

[App page](https://appshunter.io/ios/app/idsa-practice-guidelines/id1478886375)

Access and stay updated with the latest clinical guidelines from the Infectious Diseases Society of America. This app offers interactive tools, search functionality, and the ability to bookmark key information and take notes for healthcare professionals.

**Highlights:** Access clinical guidelines, Interactive tools, Search guidelines, Bookmark pages, Take notes

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is IDSA Practice Guidelines free?

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

### Is SIR Guidelines free?

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

### Which has better reviews, IDSA Practice Guidelines or SIR Guidelines?

SIR Guidelines is rated higher. IDSA Practice Guidelines averages 4.8 out of 5 from 559 ratings, while SIR Guidelines averages 5.0 from 23 ratings.

### Do IDSA Practice Guidelines or SIR Guidelines have ads?

Neither IDSA Practice Guidelines nor SIR Guidelines shows ads.

### Which is updated more often, IDSA Practice Guidelines or SIR Guidelines?

IDSA Practice Guidelines ships an update every 7 months, and SIR Guidelines every 3 weeks. Most recently, IDSA Practice Guidelines was updated on October 12, 2026 and SIR Guidelines on October 3, 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.*