# boostEM vs CorePendium

The clearest difference is review sentiment: boostEM at 100% against CorePendium's 67%. boostEM also leads on monetization model (free vs freemium) and iOS requirement (7.1 vs 15.1). CorePendium's advantage is ratings volume (1.4K vs 9) and rating (4.9 vs 4.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

CorePendium holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: CorePendium has 1.4K ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 100% of boostEM's written reviews are positive against 67% of CorePendium's, so the app with the better star average is not the one people write more warmly about.

boostEM ships an update every 3 weeks, CorePendium monthly. The most recent releases landed on June 6, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | boostEM | CorePendium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/boostem/id991962466/reviews) | **[4.9 (1.4K ratings)](https://appshunter.io/ios/app/corependium/id1581291387/reviews)** |
| Number of ratings | 9 | **1.4K** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | **Free** | Freemium |
| Size | 20 MB | 49 MB |
| Requires iOS | **7.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Dirkes Medical, PLLC](https://appshunter.io/developer/1668683062) | [EM:RAP, Inc.](https://appshunter.io/developer/804248263) |

## What reviewers say

### boostEM

[App page](https://appshunter.io/ios/app/boostem/id991962466)

A medical calculator for emergency physicians, offering over 60 clinical decision rules and rapid medication doses. Includes tools like a pupillometer and visual acuity chart, functioning offline without ads.

**Highlights:** 60+ clinical decision rule calculators, Rapid medication doses, Pupillometer, Estimated gestational age calculator, Visual acuity chart, Offline functionality

**In-app purchases:** none


### CorePendium

[App page](https://appshunter.io/ios/app/corependium/id1581291387)

This app provides a comprehensive, continuously updated, and peer-reviewed clinical reference for Emergency and Urgent Care Medicine. It features integrated multimedia, offline access, intuitive navigation, and medical calculators, making it an essential tool for medical professionals on the go.

**Highlights:** Expert-backed, continuously revised content, Integrated media library (ECGs, X-rays, videos, audio), Offline access to all content, Intuitive navigation with Rapid Access and Deep Dive sections, Integrated medical calculators, Links to EM:RAP knowledge base content

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great resource
- 👍 Excellent and usable app
- 👍 Terrific point of care resource
- 👍 Invaluable for EM residents

**What reviewers complain about**

- 🔍 Lacking search functionality
- 🐛 Crashes frequently
- 🔍 Poor indexing and content organization

**Reported bugs**

- Crashes on launch
- Compatibility issues with older devices

**Requested features**

- iPad version
- Ability to track progress and bookmark content
- Video playback controls (speed, rewind)


## Frequently asked questions

### Is boostEM free?

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

### Is CorePendium free?

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

### Which has better reviews, boostEM or CorePendium?

CorePendium is rated higher. boostEM averages 4.6 out of 5 from 9 ratings, while CorePendium averages 4.9 from 1.4K ratings.

### Do boostEM or CorePendium have ads?

Neither boostEM nor CorePendium shows ads.

### Which is updated more often, boostEM or CorePendium?

boostEM ships an update every 3 weeks, and CorePendium monthly. Most recently, boostEM was updated on June 6, 2026 and CorePendium on September 23, 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.*