# RXFiles + vs The Ottawa Rules

RXFiles + and The Ottawa Rules both sit at 5.0 stars, but that hides the real split: 100% of The Ottawa Rules's written reviews are positive against 50% of RXFiles +'s. The Ottawa Rules also leads on monetization model (free vs subscription) and update cadence (every 2 months vs every 6 months). On price, rating, ratings volume 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 RXFiles + against 5.0 for The Ottawa Rules. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 50% of RXFiles +'s written reviews are positive against 100% of The Ottawa Rules's.

RXFiles + ships an update every 6 months, The Ottawa Rules every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | RXFiles + | The Ottawa Rules |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/rxfiles-plus/id1039875266/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/the-ottawa-rules/id1104004722/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Subscription | **Free** |
| Size | 33 MB | 155 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [University of Saskatchewan - RxFiles](https://appshunter.io/developer/445927336) | [Ottawa Hospital Research Institute](https://appshunter.io/developer/574951918) |

## What reviewers say

### RXFiles +

[App page](https://appshunter.io/ios/app/rxfiles-plus/id1039875266)

This app provides comprehensive drug comparison charts for medical professionals. It offers detailed information on drug names, strengths, formulations, contraindications, side effects, interactions, dosing, and costs, aiding in therapeutic decision-making.

**Highlights:** Over 106 drug comparison charts, Detailed drug information, Therapeutic approach guidance, Contraindications and side effects, Dosing and cost information, Searchable by medical categories

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

**In-app purchases:** none


### The Ottawa Rules

[App page](https://appshunter.io/ios/app/the-ottawa-rules/id1104004722)

This app provides accessible clinical decision rules developed by researchers to help healthcare professionals make informed choices. It aims to reduce unnecessary diagnostic imaging and emergency room wait times, improving patient comfort and healthcare costs.

**Highlights:** Accessible clinical decision rules, Reduces unnecessary imaging, Decreases ER wait times, Enhances patient comfort, Lowers healthcare costs

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RXFiles + free?

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

### Is The Ottawa Rules free?

The Ottawa Rules is free to download, with no in-app purchases.

### Which has better reviews, RXFiles + or The Ottawa Rules?

RXFiles + and The Ottawa Rules are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do RXFiles + or The Ottawa Rules have ads?

Neither RXFiles + nor The Ottawa Rules shows ads.

### Which is updated more often, RXFiles + or The Ottawa Rules?

RXFiles + ships an update every 6 months, and The Ottawa Rules every 2 months. Most recently, RXFiles + was updated on November 6, 2026 and The Ottawa Rules on November 2, 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.*