# King County EMS Protocol Book vs EMS Pathfinder

The clearest difference is ratings volume: EMS Pathfinder at 6 against King County EMS Protocol Book's 1. On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for King County EMS Protocol Book against 5.0 for EMS Pathfinder. That said, the two scores are not equally well evidenced: EMS Pathfinder has 6 ratings behind it against 1, so its average is the more settled of the two.

King County EMS Protocol Book ships an update every 4 months, EMS Pathfinder every 3 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | King County EMS Protocol Book | EMS Pathfinder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/king-county-ems-protocol-book/id777118990/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/ems-pathfinder/id6752676004/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 28 MB | 147 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Acid Remap LLC](https://appshunter.io/developer/323130617) | [FullCode LLC](https://appshunter.io/developer/1840533567) |

## What reviewers say

### King County EMS Protocol Book

[App page](https://appshunter.io/ios/app/king-county-ems-protocol-book/id777118990)

Access emergency medical protocols and supporting materials offline. Quickly find information with indexed lookup and search, save favorites, and add custom notes. Stay updated with the latest protocols and hospital contact details.

**Highlights:** Offline protocol access, Indexed lookup, Search titles and text, Favorites tab, Customizable notes, Updated protocol information

**In-app purchases:** none


### EMS Pathfinder

[App page](https://appshunter.io/ios/app/ems-pathfinder/id6752676004)

Access free, offline EMS protocols, drug references, and clinical tools tailored for mobile use. Features include interactive flowcharts, AI-powered search, and customizable tools for field professionals. Updates are free and automatic when online.

**Highlights:** Offline access to EMS protocols, Mobile-optimized protocol layouts, Interactive flowcharts, AI-enhanced search, Medication and dosing calculator, Pediatric length-based reference, CPR and incident timers

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

**In-app purchases:** none


## Frequently asked questions

### Is King County EMS Protocol Book free?

King County EMS Protocol Book is free to download, with no in-app purchases.

### Is EMS Pathfinder free?

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

### Which has better reviews, King County EMS Protocol Book or EMS Pathfinder?

King County EMS Protocol Book and EMS Pathfinder are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.

### Do King County EMS Protocol Book or EMS Pathfinder have ads?

Neither King County EMS Protocol Book nor EMS Pathfinder shows ads.

### Which is updated more often, King County EMS Protocol Book or EMS Pathfinder?

King County EMS Protocol Book ships an update every 4 months, and EMS Pathfinder every 3 months. Most recently, King County EMS Protocol Book was updated on November 6, 2026 and EMS Pathfinder on October 30, 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.*