# SIR Guidelines vs LnQ App

SIR Guidelines and LnQ App are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SIR Guidelines | LnQ App |
| --- | --- | --- |
| 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 | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 28 MB | 40 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Society of Interventional Radiology](https://appshunter.io/developer/508819578) | [LnQ, Inc](https://appshunter.io/developer/1784590699) |

## 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


### LnQ App

[App page](https://appshunter.io/ios/app/lnq-app/id6739668545)

**In-app purchases:** none


## Frequently asked questions

### Is SIR Guidelines free?

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

### Is LnQ App free?

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

### Do SIR Guidelines or LnQ App have ads?

Neither SIR Guidelines nor LnQ App shows ads.

### Which is updated more often, SIR Guidelines or LnQ App?

SIR Guidelines ships an update every 3 weeks, and LnQ App every 3 weeks. Most recently, SIR Guidelines was updated on October 13, 2026 and LnQ App on October 16, 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.*