# Cardinal Glennon ER Reference vs Protean Connect

The clearest difference is rating: Protean Connect at 5.0 against Cardinal Glennon ER Reference's 4.5. Protean Connect also leads on update cadence (every 3 weeks vs every 5 months). Cardinal Glennon ER Reference's advantage is review sentiment (100% vs 67%). On price, ratings volume, 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.

Protean Connect holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews complicate that: 100% of Cardinal Glennon ER Reference's written reviews are positive against 67% of Protean Connect's, so the app with the better star average is not the one people write more warmly about.

Cardinal Glennon ER Reference ships an update every 5 months, Protean Connect every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Cardinal Glennon ER Reference | Protean Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/cardinal-glennon-er-reference/id516229794/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/protean-connect/id1515622231/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 28 MB | 18 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Acid Remap LLC](https://appshunter.io/developer/323130617) | [Protean LLC](https://appshunter.io/developer/1185682042) |

## What reviewers say

### Cardinal Glennon ER Reference

[App page](https://appshunter.io/ios/app/cardinal-glennon-er-reference/id516229794)

Provides offline access to a pediatric ER and EMS reference book. Quickly look up protocols, search titles and text, and save favorites. Customizable notes and contact information are also included.

**Highlights:** Offline protocol lookup, Indexed search, Favorites tab, Customizable notes, Up-to-date protocols, Hospital contact info

**In-app purchases:** none


### Protean Connect

[App page](https://appshunter.io/ios/app/protean-connect/id1515622231)

Access medical reference information and sync documents, formulary, and contacts with a connected platform. This app facilitates seamless data management for medical professionals.

**Highlights:** Medical reference information, Connect platform access, Document synchronization, Formulary access, Contact synchronization

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

**In-app purchases:** none


## Frequently asked questions

### Is Cardinal Glennon ER Reference free?

Cardinal Glennon ER Reference is free to download, with no in-app purchases.

### Is Protean Connect free?

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

### Which has better reviews, Cardinal Glennon ER Reference or Protean Connect?

Protean Connect is rated higher. Cardinal Glennon ER Reference averages 4.5 out of 5 from 4 ratings, while Protean Connect averages 5.0 from 2 ratings.

### Do Cardinal Glennon ER Reference or Protean Connect have ads?

Neither Cardinal Glennon ER Reference nor Protean Connect shows ads.

### Which is updated more often, Cardinal Glennon ER Reference or Protean Connect?

Cardinal Glennon ER Reference ships an update every 5 months, and Protean Connect every 3 weeks. Most recently, Cardinal Glennon ER Reference was updated on October 24, 2026 and Protean Connect on October 24, 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.*