Comparison

LA County Paramedic vs arrhythmia

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

Head to head
About

LA County Paramedic

This app provides LA County paramedics and EMTs with instant access to protocols, clinical calculators, hospital destinations, and AI-powered assistance. It offers offline access to the EMS policy manual, a hospital finder, and essential contacts, all designed for field use.

Highlights
  • Offline protocol access
  • AI-powered clinical assistant
  • Hospital finder with directions
  • 19 clinical calculators
  • Evidence-based destination tools
  • Essential contacts
  • Automatic document sync
Features
Currently charting
Read full description

A reference app for LA County paramedics and EMTs. Protocols, clinical calculators, hospital destinations, and AI-powered assistance—all in one place. INSTANT ACCESS TO PROTOCOLS Browse the complete LA County EMS policy manual with offline access. Documents sync automatically so you always have the latest protocols. Search, bookmark, and reference policies anywhere—even without cell service. HOSPITAL FINDER Find the nearest appropriate facility instantly. Filter by hospital type, view services offered, and get directions—all based on your current location. AI-POWERED CLINICAL ASSISTANT Get instant answers to protocol questions, clinical scenarios, and field situations. Our AI assistant is trained specifically for LA County EMS operations. CLINICAL CALCULATORS & DECISION TOOLS Make confident clinical decisions with 19 built-in tools: • GCS Calculator — Glasgow Coma Scale for adults, children, and infants • mLAPSS/LAMS — Stroke screening with 521 destination guidance • APGAR Score — Rapid newborn assessment • TBSA Calculator — Interactive burn surface area with Rule of 9s • Shock Index & Assessment — Early hemodynamic instability detection • START/JumpSTART Triage — MCI triage for adults and pediatrics • SMR Decision Tool — Spinal motion restriction algorithm • Needle Thoracostomy — Tension pneumothorax decision support • AMA Checklist — Complete refusal documentation with capacity assessment • Vital Signs Reference — Age-based normal ranges DESTINATION CRITERIA MADE SIMPLE Know exactly where to transport with evidence-based destination tools: • Trauma Criteria — Physiologic, anatomic, and mechanism-based triage • Stroke Criteria — PSC vs CSC decision support • STEMI (SRC) Criteria — Cardiac receiving center guidance • Pediatric (PMC) Criteria — Pediatric medical center destination • Perinatal Criteria — Obstetric emergency routing ESSENTIAL CONTACTS One-tap access to dispatch, base hospitals, specialty centers, and county resources. No more searching through paperwork. BUILT FOR THE FIELD • Works offline — Access protocols without cell service • Fast and reliable — Designed for high-pressure situations • Always current — Automatic document sync keeps you updated • Weekly tips — "Did You Know?" notifications sharpen your skills TRUSTED BY THE LA COUNTY EMS COMMUNITY Join thousands of paramedics and EMTs who rely on this app every shift. Whether you're a new EMT or a seasoned paramedic, this is the reference tool that has your back. *** IMPORTANT DISCLAIMER *** THIS APP IS NOT AN OFFICIAL GOVERNMENT ENTITY AND IS NOT AFFILIATED WITH, ENDORSED BY, OR AUTHORIZED BY LOS ANGELES COUNTY OR ANY GOVERNMENT AGENCY. The information is provided for informational purposes only and is sourced directly from publicly available official government websites. Always verify important details directly on the official site. Use at your own risk. All government-related information in this app is sourced exclusively from the official Los Angeles County Department of Health Services website: Official Source: https://dhs.lacounty.gov/ This includes details about health services, programs, facilities, and other public health information provided by the Health Services - Los Angeles County agency. For the most up-to-date and official information, please visit https://dhs.lacounty.gov/ directly. Thank you for using LA County Paramedic!

About

arrhythmia

Practice interpreting EKGs in lead II with realistic simulations. Choose rhythms to study or test your knowledge in a game mode. Ideal for healthcare professionals to hone their diagnostic skills.

Highlights
  • EKG interpretation practice
  • Lead II simulation
  • Study Mode with rhythm selection
  • Game Mode for random rhythm identification
  • Customizable rhythm sets
  • Realistic rhythm variations
Currently charting
Read full description

Practice reading EKGs in lead II Basic EKG interpretation is more accurately described as an intermediate level skill that takes time, practice and refreshing. Whether you are a doctor, nurse, EMT or tech your ability to read and pickup on basic EKG changes in real time is essential. Practice with an app that actually looks like what you see at work. Use the app’s ‘Study Mode’ to choose one or multiple rhythms to view and compare. A brief description of each rhythm is provided, you can also pause and restart rhythms. Delete and add specific rhythms as desired. Rates, amplitudes and widths of the rhythms are dynamically set which provides for a more realistic simulation and variation within each type of rhythm. Use the app’s ‘Game Mode’ to challenge yourself to identify rhythms presented randomly in lead II. If desired, you can also custom specify which rhythms to include in the game. Access to Study Mode and Game Mode requires a subscription via in-app purchase. Please Read: The purpose of this app is not to teach basic EKG interpretation but rather to practice basic EKG interpretation. If you don’t know basic EKG interpretation seek out additional resources such as classes, books, online materials and mentors to learn more and further your understanding. Note: The cardiac rhythms presented by the app are simulated approximations. There is NO guarantee to the accuracy of rhythms presented. While accuracy is not guaranteed it is a goal. Please report errors, suggestions or general feedback to: feedback@arrhythmiaApp.com. Arrhythmia uses the standard Apple Terms of Use End User License Agreement (EULA): http://www.apple.com/legal/itunes/appstore/dev/stdeula

Screenshots

LA County Paramedic4 screens
arrhythmia4 screens

Verdict

The call

The clearest difference is rating: LA County Paramedic at 5.0 against arrhythmia's 4.2. LA County Paramedic also leads on monetization model (free with in-app purchases vs subscription). arrhythmia's advantage is ratings volume (111 vs 1). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. LA County Paramedic sells 3 in-app purchases, starting at $0.99 per month and arrhythmia sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

LA County Paramedic holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: arrhythmia has 111 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 43% of LA County Paramedic's written reviews are positive against 45% of arrhythmia's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

LA County Paramedic ships an update every 5 weeks, arrhythmia every 3 weeks. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 8 level
LA County Paramedic versus arrhythmia: the parameters behind the verdict, then further details
ParameterLA County Paramedicarrhythmia
PriceFreeFree
Rating5.0 (1 ratings) — better4.2 (111 ratings)
Positive reviews43.1% of reviews45.0% of reviews — better
Number of ratings1111 — better
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
Best chart rank#196#188 — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.617.6 — better
Further details — not scored
Size70 MB159 MB
Age rating17+17+
DeveloperDigital Training Systems IncorporatedSingle Sail Software, LLC

Customer experience

LA County Paramedic

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews65 reviews
Positive43.1%
Neutral7.7%
Negative49.2%

arrhythmia

All ratings111 ratings
Positive80.2%
Neutral4.5%
Negative15.3%
Written reviews40 reviews
Positive45.0%
Neutral7.5%
Negative47.5%

Bugs and requests

LA County Paramedic

Reported bugs

13 issues
  • App not working
  • Blank pages
  • Doesn't load MCG, Meds or policies
  • All pages are blank
  • Half the numbers for base are wrong
Show 8 more
  • Blank protocols when you click on them
  • ERROR message when opening meds or protocols
  • App crashes constantly
  • Protocols do not have complete information
  • App shuts down after updating
  • App checks for updates then shuts down
  • NonTraumatic Hypotension reverted to Dopamine
  • Cannot pinch to zoom on protocols, policies, and drugs

Requested features

8 requests
  • Update outdated policies (e.g., King Airway vs. iGels)
  • Add San Bernardino County version
  • Add trauma, stemi, edap info to hospital listings
  • Add more information to home meds section
  • Make compatible with iPod Touch
Show 3 more
  • Add dark mode option
  • Allow pinch to zoom on protocols/policies/drugs
  • Add a way to mark or tag home meds as searched

arrhythmia

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

LA County Paramedic

Subscriptions3
  • Paramedic Monthly Subscription14 Days trial$0.991 Month
  • Paramedic Monthly Subscription14 Days trial$2.991 Month
  • Paramedic Yearly Subscription14 Days trial$29.991 Year
3 purchases

arrhythmia

Subscriptions2
  • Monthly7 Days trial$2.991 Month
  • Yearly7 Days trial$19.991 Year
One-time1
  • Unlock All Rhythms (One-time Purchase)$4.99

Questions

Is LA County Paramedic free?
LA County Paramedic is free to download, with in-app purchases available.
Is arrhythmia free?
arrhythmia is free to download, with in-app purchases available.
Which has better reviews, LA County Paramedic or arrhythmia?
LA County Paramedic is rated higher. LA County Paramedic averages 5.0 out of 5 from 1 ratings, while arrhythmia averages 4.2 from 111 ratings.
Do LA County Paramedic or arrhythmia have ads?
Neither LA County Paramedic nor arrhythmia shows ads.
Which is updated more often, LA County Paramedic or arrhythmia?
LA County Paramedic ships an update every 5 weeks, and arrhythmia every 3 weeks. Most recently, LA County Paramedic was updated on September 23, 2026 and arrhythmia on September 21, 2026.
Which is more popular, LA County Paramedic or arrhythmia?
LA County Paramedic currently peaks at #196 in the App Store charts, and arrhythmia at #188. Chart position reflects recent download velocity rather than total install base.

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