# SIR Guidelines vs PE Classifier

The clearest difference is ratings volume: SIR Guidelines at 23 against PE Classifier's 1. On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for SIR Guidelines against 5.0 for PE Classifier. That said, the two scores are not equally well evidenced: SIR Guidelines has 23 ratings behind it against 1, so its average is the more settled of the two.

SIR Guidelines ships an update every 3 weeks, PE Classifier monthly. The most recent releases landed on October 3, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | SIR Guidelines | PE Classifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (23 ratings)](https://appshunter.io/ios/app/sir-guidelines/id1552455529/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/pe-classifier/id6781558435/reviews) |
| Number of ratings | **23** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 28 MB | 24 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Society of Interventional Radiology](https://appshunter.io/developer/508819578) | [Dawwod George](https://appshunter.io/developer/6781558437) |

## 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


### PE Classifier

[App page](https://appshunter.io/ios/app/pe-classifier/id6781558435)

This educational reference tool helps medical professionals and students understand and apply the latest acute pulmonary embolism classification system. It features interactive diagrams, a built-in checklist, and direct links to source guidelines for comprehensive learning.

**Highlights:** Full Category A-E classification with sub-stages, Interactive visual diagrams, Built-in HESTIA checklist, Optional local case log, Direct link to source guideline

**Features:** macOS Compatibility, 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 PE Classifier free?

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

### Which has better reviews, SIR Guidelines or PE Classifier?

SIR Guidelines and PE Classifier are both rated 5.0 out of 5 on the App Store, from 23 and 1 ratings respectively.

### Do SIR Guidelines or PE Classifier have ads?

Neither SIR Guidelines nor PE Classifier shows ads.

### Which is updated more often, SIR Guidelines or PE Classifier?

SIR Guidelines ships an update every 3 weeks, and PE Classifier monthly. Most recently, SIR Guidelines was updated on October 3, 2026 and PE Classifier on September 18, 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.*