# Guide Rx Critiques vs Responder

The clearest difference is in-app purchases: Responder at none against Guide Rx Critiques's 1. Responder also leads on update cadence (every 10 days vs every 6 months). Guide Rx Critiques's advantage is iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Guide Rx Critiques sells 1 in-app purchase, starting at $9.99 per year. Responder asks for nothing beyond the download.

Guide Rx Critiques ships an update every 6 months, Responder every 10 days. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Guide Rx Critiques | Responder |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 19.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 160 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [L'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ)](https://appshunter.io/developer/576953454) | [BaselineTelematics.com](https://appshunter.io/developer/1053190309) |

## What reviewers say

### Guide Rx Critiques

[App page](https://appshunter.io/ios/app/guide-rx-critiques/id580149889)

This app provides a practical reference for healthcare professionals administering critical intravenous medications. It includes information on classification, action, indications, dosages, stability, and compatibility for approximately sixty commonly used drugs in critical care. A free version offers reduced content, with a full subscription unlocking all features and updates.

**Highlights:** Critical care medication reference, Drug classification and action, Dosage and presentation information, Stability and compatibility data, Perfusion tables, Full guide subscription

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Abonnement au guide complet | $9.99 | per year |


### Responder

[App page](https://appshunter.io/ios/app/responder/id6746202465)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Guide Rx Critiques free?

Guide Rx Critiques is free to download, with in-app purchases available.

### Is Responder free?

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

### Do Guide Rx Critiques or Responder have ads?

Neither Guide Rx Critiques nor Responder shows ads.

### Which is updated more often, Guide Rx Critiques or Responder?

Guide Rx Critiques ships an update every 6 months, and Responder every 10 days. Most recently, Guide Rx Critiques was updated on October 24, 2026 and Responder on October 9, 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.*