EMS Guidebook vs ER NAV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EMS Guidebook
This app provides a digital reference for emergency medical service protocols, replacing traditional physical guidebooks. It includes essential medical charts, guidelines, and rhythm examples, with agency-specific protocols accessible via password.
- Digital EMS agency protocols
- Replacement for physical guidebooks
- Pediatric vital signs charts
- Burn and c-spine clearance guides
- Cardiac rhythm examples
- AHA guidelines
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EMS Guidebook allows the user to view the medical protocols of specific EMS agencies. This guidebook is meant to be a replacement of the traditional flip book guides that EMTs and Paramedics carry for reference on emergency calls. The specific agencies protocols require passwords to download. Those passwords are available from the agency's Training Officer. The Generic Protocols are available without a password. As part of the base program, each set of protocols contain references such as pediatric vital signs, burn references, c-spine clearance charts, 12-lead guidelines, American Heart Association (AHA) guidelines, START and JumpSTART triage guides. There are also guides to several common cardiac rhythms with examples. If you wish to have your protocols put into this system contact us through the app
ER NAV
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.
- 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
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Built for EMS, by EMS — ER NAV gives you the fastest way to the ambulance bay. ER NAV was inspired by navigation units on aircraft. These systems allow pilots to instantly go direct to an exact destination. ER NAV brings this tech into EMS by allowing EMT's and Medics to quickly find the nearest hospital and route direct to the ambulance bay using your preferred navigation app. Ambulance Bay Navigation Go directly to the correct EMS entrance, not the hospital’s main lobby. No guessing service roads or circling parking lots in the dark. Hospital Information See trauma, stroke, burn, pediatric, and specialty designations instantly — before committing to a route. No digging through outdated documents or memory. Use Your Preferred Apps Tap once to open your route in Apple Maps, Google Maps, or Waze. ER NAV works with the navigation app you're already used to. Ambulance Bay Images See user-submitted images of the ambulance bay so you know what you're looking for. Filter by Specialty Filter nearest hospitals by specialty including Trauma, Stroke, Burn, and Pediatric. Trauma and Stroke hospitals will also show their correct designations such as Level II Trauma Center, Comprehensive Stroke Center, etc. NJ EMS Protocols Access the full NJ EMS Clinical Practice Protocols & Guidelines directly in the app. Smart search with medical synonym support lets you find the right protocol in seconds, even mid-call. Med Reference Full in-app drug reference with indications, contraindications, and dosing — built for EMS. Filter by EMS medications or patient medications, and search by name, class, or brand name. Favorite Hospitals Favorite hospitals that you visit often for easy routing in the future. Call the ER Call the ER with one click on the home page. Hospital Notes Add hospital notes such as access tips, door codes, contact numbers — all stored securely only on your device. Live Map View View a live map of all hospitals and filter by specialty. Smart Search Search any hospital in your state by name, address, or specialty. O2 Tank Duration Calculator Calculate how long your O2 tank will last before it drops below 500 PSI or empty. Start a countdown that will alert you when the tank is running low. (Supports tank sizes C, D, E, F, M, G, H, J, K) Traffic Flow See real-time traffic conditions on routes to every nearby hospital, color-coded by severity. A scrolling alert ticker highlights active delays so you can pick the fastest route before you move. Route Traffic on Map View traffic-colored routes to all nearby hospitals directly on the map — green, yellow, and red overlays show you exactly where the slowdowns are before you commit to a route. Call Log & Auto-Mileage Log your calls with automatic GPS-based mileage tracking. Tap Departed Location and Arrived at Destination — ER NAV calculates the miles for you. Includes decimal mileage display and call timestamps. Community Notes View and submit community-sourced notes for hospitals — access tips, alerts, and more. Submitted notes are reviewed before publishing to keep information accurate and trustworthy. Suggest a Hospital Don't see a hospital in your area? Suggest it directly from the app. New submissions are reviewed and added weekly. Report an Issue Found incorrect hospital information? Report it in-app with pre-filled fields for easy submission. Our team verifies and corrects flagged entries. EMS Room Ratings Rate the EMS room at any hospital and see ratings from other providers. To see the list of supported hospitals, visit our website at https://ernavapp.com. We're working hard to expand to additional states in the upcoming weeks. If you need support, want to contribute feedback, or apply for your agency, email us at ernavapp@gmail.com. All features described above require a subscription. Terms of Service: https://ernavapp.com/pages/terms_of_service_page Privacy Policy: https://ernavapp.com/pages/privacy_policy_page
Screenshots
Verdict
EMS Guidebook and ER NAV both sit at 4.8 stars, but that hides the real split: 86% of ER NAV's written reviews are positive against 33% of EMS Guidebook's. EMS Guidebook's advantage is ratings volume (90 vs 14) and iOS requirement (15.0 vs 17.5). 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. EMS Guidebook sells 7 one-off in-app purchases and ER NAV sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for EMS Guidebook against 4.7 for ER NAV. That said, the two scores are not equally well evidenced: EMS Guidebook has 90 ratings behind it against 14, so its average is the more settled of the two. Written reviews are what separate them: 33% of EMS Guidebook's written reviews are positive against 86% of ER NAV's.
EMS Guidebook ships an update every 6 months, ER NAV every 3 months. The most recent releases landed on September 10, 2026 and September 20, 2026 respectively.
| Parameter | EMS Guidebook | ER NAV |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (90 ratings) — better | 4.7 (14 ratings) |
| Positive reviews | 33.3% of reviews | 85.7% of reviews — better |
| Number of ratings | 90 — better | 14 |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 3 MB | 32 MB |
| Age rating | 17+ | 4+ |
| Developer | Larry Owens | DirectTo Solutions LLC |
Customer experience
EMS Guidebook
ER NAV
In-app purchases
EMS Guidebook
- 2009 Utah EMS for Children Off-Line Protocols$1.99
- District 2B Protocols$2.99
- 2009 West Virginia EMT Basic Protocols$3.99
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- 2012 North Carolina EMS Protocols$4.99
- 2009 North Carolina EMS Protocols$4.99
- 2010 Hawaii EMS Standing Orders$4.99
- 2011-2013 St John New Zealand Protocols$4.99
ER NAV
- All Access7 Days trial$2.991 Month
Questions
Is EMS Guidebook free?
Is ER NAV free?
Which has better reviews, EMS Guidebook or ER NAV?
Do EMS Guidebook or ER NAV have ads?
Which is updated more often, EMS Guidebook or ER NAV?
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