King County EMS Protocol Book vs EMS Pathfinder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
King County EMS Protocol Book
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.
- Offline protocol access
- Indexed lookup
- Search titles and text
- Favorites tab
- Customizable notes
- Updated protocol information
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King County EMS Protocol Book is an app that provides quick offline access to the King County EMS protocols and supporting materials. Features include: •Quick indexed lookup of protocols in a matter of seconds •Search titles and text •Favorites tab for quick access of what's important to you •Updated shortly after new protocols are posted onlinemaking it more up-to-date than most printed protocol manuals •Customizable hospital contact information and mapping •Customizable notes for each individual protocol entry •Always with you as long as you have your device and never fades or tears
EMS Pathfinder
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.
- 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
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Free statewide and regional EMS protocols, with a drug reference and clinical tools, in one app that works without signal. No subscription, and protocol updates are free. Every protocol is rebuilt for your phone screen, so there's no pinching and zooming around a printed page or PDF. Pick your state, region or agency once and everything downloads to your device, ready for the basement, the back road or the dead zone. Updates arrive on their own the next time you're online. PROTOCOLS BUILT FOR YOUR PHONE • Native mobile layouts, color-coded by provider level • Enter your patient's details once and every dose in the protocol is worked out for them • Tap any medication, tool or linked protocol to jump straight to it • Step through interactive flowcharts one decision at a time • AI-enhanced search that understands what you mean, even offline • Favorites for the protocols, meds and tools you reach for most MEDICATIONS AND DOSING • Searchable drug reference with indications, contraindications, mechanism and dosing • Cross-linked both ways: open a drug from any protocol, or see every protocol that uses it • Dose, volume, infusion and gravity drip calculators built from your protocols • Weight in lb or kg, or ideal body weight from height • Clinically rounded results, with maximum-dose and patient-age checks CLINICAL TOOLS • Pediatric length-based reference: weights, doses and defibrillation energies by zone • Burn calculator with TBSA and Parkland fluid rates • Stroke scales (Cincinnati/FAST, BE-FAST, RACE, LAMS, VAN, FAST-ED), plus GCS, APGAR, Sgarbossa and COWS • Tidal volume, shock index, pediatric ET tube size, oxygen tank duration and common home meds • Hospital Finder with capability filters (in select states) • CPR and incident timers with event logs, with incident times in a Live Activity on your Lock Screen • Home Screen widget that opens your favorite tools in one tap BUILT FOR THE FIELD • Fully offline once downloaded, with no hunting for signal • Keep several states or agencies on your phone at once • Adjustable text size and dark mode • No ads, and no account needed for public protocols FREE PUBLIC PROTOCOLS Statewide and regional sets from across the US, plus the NASEMSO National Model EMS Clinical Guidelines, and we add new sets regularly. Open the app to see every set; no account needed. Don't see yours? Request it in the app or at emspathfinderapp.com. FOR EMS AGENCIES Give every crew member your own protocols, medications, dosing, tools, contacts, documents and forms, updated live from a web editor. You control who sees what: members get in with an account, single sign-on or an access code. Agencies can also add barcode medication administration (BCMA) scanning. Learn more at emspathfinderapp.com. A NOTE ON SAFETY EMS Pathfinder is a reference and educational tool. It does not replace medical direction, your agency's guidelines or your clinical judgment. Always check the concentration on the packaging and confirm doses against local protocol before you give them. Each public protocol set shows its source and when we last updated it. Confirm with your state or regional EMS authority and your medical director. Questions or feedback? Tap Support in the app or visit emspathfinderapp.com.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | King County EMS Protocol Book | EMS Pathfinder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (6 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 28 MB | 147 MB |
| Age rating | 17+ | 17+ |
| Developer | Acid Remap LLC | FullCode LLC |
Customer experience
King County EMS Protocol Book
EMS Pathfinder
In-app purchases
King County EMS Protocol Book
No in-app purchases
EMS Pathfinder
No in-app purchases
Questions
Is King County EMS Protocol Book free?
Is EMS Pathfinder free?
Which has better reviews, King County EMS Protocol Book or EMS Pathfinder?
Do King County EMS Protocol Book or EMS Pathfinder have ads?
Which is updated more often, King County EMS Protocol Book or EMS Pathfinder?
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