# Region X EMS Protocols vs ER NAV

The clearest difference is rating: ER NAV at 4.8 against Region X EMS Protocols's 2.6. ER NAV also leads on chart position (#194 vs unranked). Region X EMS Protocols's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 17.5). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. ER NAV sells 1 in-app purchase, starting at $2.99 per month. Region X EMS Protocols asks for nothing beyond the download.

ER NAV holds the better App Store score, 4.8 against 2.6. Both are backed by a comparable volume of ratings — 7 and 16 respectively.

Region X EMS Protocols ships an update every 5 months, ER NAV every 3 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Region X EMS Protocols | ER NAV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (7 ratings)](https://appshunter.io/ios/app/region-x-ems-protocols/id6450221966/reviews) | **[4.8 (16 ratings)](https://appshunter.io/ios/app/er-nav/id6751308029/reviews)** |
| Number of ratings | 7 | **16** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | **Free** | Freemium |
| Best chart rank | — | **#194** |
| Size | 52 MB | 32 MB |
| Requires iOS | **15.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Acid Remap LLC](https://appshunter.io/developer/323130617) | [DirectTo Solutions LLC](https://appshunter.io/developer/1834555580) |

## What reviewers say

### Region X EMS Protocols

[App page](https://appshunter.io/ios/app/region-x-ems-protocols/id6450221966)

Access Region X (IL) protocols and supporting materials offline. Features quick indexed lookup, search functionality, and a favorites tab for essential content. Allows for customizable notes and is always available on your device.

**Highlights:** Offline protocol access, Quick indexed lookup, Search titles and text, Favorites tab, Customizable notes, Regular updates

**Features:** macOS Compatibility

**In-app purchases:** none


### ER NAV

[App page](https://appshunter.io/ios/app/er-nav/id6751308029)

**Currently charting:** #194 Top Grossing · Medical (US App Store)

This app provides EMS professionals with direct navigation to ambulance bays and critical hospital information. It offers features like specialty filtering, user-submitted bay images, and integrated medical references. Users can also access protocols, drug information, and a unique O2 tank calculator.

**Highlights:** Direct ambulance bay navigation, Hospital specialty designations, User-submitted bay images, Integrated medical references, NJ EMS protocol access, O2 tank duration calculator, Real-time traffic flow

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $2.99 | per month |


## Frequently asked questions

### Is Region X EMS Protocols free?

Region X EMS Protocols is free to download, with no in-app purchases.

### Is ER NAV free?

ER NAV is free to download, with in-app purchases available.

### Which has better reviews, Region X EMS Protocols or ER NAV?

ER NAV is rated higher. Region X EMS Protocols averages 2.6 out of 5 from 7 ratings, while ER NAV averages 4.8 from 16 ratings.

### Do Region X EMS Protocols or ER NAV have ads?

Neither Region X EMS Protocols nor ER NAV shows ads.

### Which is updated more often, Region X EMS Protocols or ER NAV?

Region X EMS Protocols ships an update every 5 months, and ER NAV every 3 months. Most recently, Region X EMS Protocols was updated on November 3, 2026 and ER NAV on November 8, 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.*