Comparison

EMS Calculator vs EMS Guidebook

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

EMS Calculator

This medical app provides ultra-fast drug dosing calculations for pediatric and adult emergencies based on patient weight. It offers quick access to dosing ranges and specific infusion calculations, eliminating the need for extensive reference materials.

Highlights
  • Ultra-fast drug dosing
  • Pediatric and adult calculations
  • Weight-based dosing ranges
  • Nicardipine infusion calculator
  • One-page interface
Features
Read full description

EMS Calculator is a one page ultra-fast emergency pediatric and adult drug dosing calculator. There is only one control - the patient's weight. This immediately gives you a dosing range, eliminating the need to flip through pages of information. If you want to read about the drug you can get a textbook; otherwise, this gives you everything you want - fast! The weight range is from 1 to 250 kg. The information button gives you the range calculation. A nicardipine infusion range is also given for the treatment of severe hypertension.

About

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.

Highlights
  • Digital EMS agency protocols
  • Replacement for physical guidebooks
  • Pediatric vital signs charts
  • Burn and c-spine clearance guides
  • Cardiac rhythm examples
  • AHA guidelines
Features
Read full description

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

Screenshots

EMS Calculator2 screens
EMS Guidebook4 screens

Verdict

The call

The clearest difference is price: EMS Guidebook at Free against EMS Calculator's $0.99. EMS Guidebook also leads on rating (4.9 vs 1.8) and ratings volume (115 vs 4). EMS Calculator's advantage is in-app purchases (none vs 7) and iOS requirement (6.0 vs 15.0). On ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

EMS Guidebook is free to download; EMS Calculator costs $0.99 up front. EMS Guidebook sells 7 one-off in-app purchases. EMS Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

EMS Guidebook holds the better App Store score, 4.9 against 1.8. That said, the two scores are not equally well evidenced: EMS Guidebook has 115 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 25% of EMS Calculator's written reviews are positive against 33% of EMS Guidebook's.

UpkeepUpdate frequency

EMS Calculator ships an update every 16 months, EMS Guidebook every 6 months. Both last shipped on October 23, 2026.

Scorecard8 real differences · 2 level
EMS Calculator versus EMS Guidebook: the parameters behind the verdict, then further details
ParameterEMS CalculatorEMS Guidebook
Price$0.99Free — better
Rating1.8 (4 ratings)4.9 (115 ratings) — better
Positive reviews25.0% of reviews33.3% of reviews — better
Number of ratings4115 — better
Update frequencyEvery 16 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better15.0
Further details — not scored
Size1 MB3 MB
Age rating17+17+
DeveloperCrystal Clear SolutionsLarry Owens

Customer experience

EMS Calculator

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews8 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

EMS Guidebook

All ratings90 ratings
Positive97.8%
Neutral0.0%
Negative2.2%
Written reviews9 reviews
Positive33.3%
Neutral11.1%
Negative55.6%

In-app purchases

None

EMS Calculator

No in-app purchases

7 purchases

EMS Guidebook

One-time7
  • 2009 Utah EMS for Children Off-Line Protocols$1.99
  • District 2B Protocols$2.99
  • 2009 West Virginia EMT Basic Protocols$3.99
Show 4 more
  • 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

Questions

Is EMS Calculator free?
EMS Calculator costs $0.99, with no in-app purchases.
Is EMS Guidebook free?
EMS Guidebook is free to download, with in-app purchases available.
Which has better reviews, EMS Calculator or EMS Guidebook?
EMS Guidebook is rated higher. EMS Calculator averages 1.8 out of 5 from 4 ratings, while EMS Guidebook averages 4.9 from 115 ratings.
Do EMS Calculator or EMS Guidebook have ads?
Neither EMS Calculator nor EMS Guidebook shows ads.
Which is updated more often, EMS Calculator or EMS Guidebook?
EMS Calculator ships an update every 16 months, and EMS Guidebook every 6 months. Most recently, EMS Calculator was updated on October 23, 2026 and EMS Guidebook on October 23, 2026.

Other comparisons