# Cardinal Glennon ER Reference vs BioLens

The clearest difference is iOS requirement: Cardinal Glennon ER Reference at 15.0 against BioLens's 17.0. 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.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Cardinal Glennon ER Reference | BioLens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/cardinal-glennon-er-reference/id516229794/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free | — |
| Size | 28 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Acid Remap LLC](https://appshunter.io/developer/323130617) | [Pavel Abin](https://appshunter.io/developer/1510604971) |

## 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


### BioLens

[App page](https://appshunter.io/ios/app/biolens-medical-code-lookup/id6779193858)

**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 BioLens free?

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

### Do Cardinal Glennon ER Reference or BioLens have ads?

Neither Cardinal Glennon ER Reference nor BioLens shows ads.

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

Cardinal Glennon ER Reference ships an update every 5 months, and BioLens every 5 months. Most recently, Cardinal Glennon ER Reference was updated on November 6, 2026 and BioLens on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*