# SIR Guidelines vs Opymize

The clearest difference is ads: SIR Guidelines at none against Opymize's shown. On price, update cadence, 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.

SIR Guidelines ships an update every 3 weeks, Opymize fortnightly. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | SIR Guidelines | Opymize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (23 ratings)](https://appshunter.io/ios/app/sir-guidelines/id1552455529/reviews)** | — |
| Number of ratings | **23** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 28 MB | 13 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Society of Interventional Radiology](https://appshunter.io/developer/508819578) | [Tamim Khaddash](https://appshunter.io/developer/1870139090) |

## 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


### Opymize

[App page](https://appshunter.io/ios/app/opymize/id6765965620)

**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 Opymize free?

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

### Do SIR Guidelines or Opymize have ads?

Opymize shows ads; SIR Guidelines does not.

### Which is updated more often, SIR Guidelines or Opymize?

SIR Guidelines ships an update every 3 weeks, and Opymize fortnightly. Most recently, SIR Guidelines was updated on September 10, 2026 and Opymize on September 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.*