# QuickEM vs The Ottawa Rules

The clearest difference is price: The Ottawa Rules at Free against QuickEM's $9.99. The Ottawa Rules also leads on in-app purchases (none vs 1) and rating (5.0 vs 4.6). QuickEM's advantage is chart position (#117 vs unranked) and ratings volume (10 vs 2). On update cadence, ads and device support there is nothing between them.

The Ottawa Rules is free to download; QuickEM costs $9.99 up front. QuickEM sells 1 one-off in-app purchase. The Ottawa Rules asks for nothing beyond the download.

The Ottawa Rules holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: QuickEM has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 91% of QuickEM's written reviews are positive against 100% of The Ottawa Rules's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | QuickEM | The Ottawa Rules |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.6 (10 ratings)](https://appshunter.io/ios/app/quickem/id930734530/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/the-ottawa-rules/id1104004722/reviews)** |
| Number of ratings | **10** | 2 |
| Positive reviews | 90.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | **Free** |
| Best chart rank | **#117** | — |
| Size | 78 MB | 155 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Dirkes Medical, PLLC](https://appshunter.io/developer/1668683062) | [Ottawa Hospital Research Institute](https://appshunter.io/developer/574951918) |

## What reviewers say

### QuickEM

[App page](https://appshunter.io/ios/app/quickem/id930734530)

**Currently charting:** #117 Top Paid · Medical (US App Store)

This emergency medicine reference app provides clinicians with instant access to critical information, including differentials, treatments, and validated medical calculators. It's designed for rapid lookup of ED-specific care, organized by chief complaints and clinical categories, and works completely offline.

**Highlights:** 80+ chief complaint topics, 90+ medical calculators, Offline access, No login or ads, Adult and pediatric coverage, Evidence-based content, Customizable favorites

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $2.99 | one-time |


### 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 QuickEM free?

QuickEM costs $9.99, and also offers in-app purchases.

### Is The Ottawa Rules free?

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

### Which has better reviews, QuickEM or The Ottawa Rules?

The Ottawa Rules is rated higher. QuickEM averages 4.6 out of 5 from 10 ratings, while The Ottawa Rules averages 5.0 from 2 ratings.

### Do QuickEM or The Ottawa Rules have ads?

Neither QuickEM nor The Ottawa Rules shows ads.

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

QuickEM ships an update every 2 months, and The Ottawa Rules every 2 months. Most recently, QuickEM was updated on October 8, 2026 and The Ottawa Rules 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.*