Comparison

NRMCA Protocols vs arrhythmia

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

Head to head
About

NRMCA Protocols

Access Northwest Regional Medical Control Authority protocols quickly and offline. Search titles and text, save favorites, and customize hospital contacts and notes. Stay updated with the latest protocols.

Highlights
  • Offline protocol access
  • Indexed lookup
  • Search titles and text
  • Favorites tab
  • Customizable hospital info
  • Customizable notes
Read full description

NRMCA Protocols is an app that provides quick offline access to the Northwest Regional Medical Control Authority protocols. 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 online making 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

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
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

NRMCA Protocols4 screens
arrhythmia4 screens

Verdict

The call

The clearest difference is rating: NRMCA Protocols at 5.0 against arrhythmia's 4.2. NRMCA Protocols also leads on in-app purchases (none vs 3) and iOS requirement (15.0 vs 17.6). arrhythmia's advantage is update cadence (every 3 weeks vs every 5 months) and ratings volume (111 vs 1). On price, 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

Both are free to download. arrhythmia sells 3 in-app purchases, starting at $2.99 per month. NRMCA Protocols asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

NRMCA Protocols 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.

UpkeepUpdate frequency

NRMCA Protocols ships an update every 5 months, arrhythmia every 3 weeks. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

Scorecard6 real differences · 4 level
NRMCA Protocols versus arrhythmia: the parameters behind the verdict, then further details
ParameterNRMCA Protocolsarrhythmia
PriceFreeFree
Rating5.0 (1 ratings) — better4.2 (111 ratings)
Positive reviews—43.9% of reviews
Number of ratings1111 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better17.6
Further details — not scored
Size28 MB159 MB
Age rating17+17+
DeveloperAcid Remap LLCSingle Sail Software, LLC

Customer experience

NRMCA Protocols

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

arrhythmia

All ratings111 ratings
Positive80.2%
Neutral4.5%
Negative15.3%
Written reviews41 reviews
Positive43.9%
Neutral7.3%
Negative48.8%

In-app purchases

None

NRMCA Protocols

No in-app purchases

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 NRMCA Protocols free?
NRMCA Protocols is free to download, with no in-app purchases.
Is arrhythmia free?
arrhythmia is free to download, with in-app purchases available.
Which has better reviews, NRMCA Protocols or arrhythmia?
NRMCA Protocols is rated higher. NRMCA Protocols averages 5.0 out of 5 from 1 ratings, while arrhythmia averages 4.2 from 111 ratings.
Do NRMCA Protocols or arrhythmia have ads?
Neither NRMCA Protocols nor arrhythmia shows ads.
Which is updated more often, NRMCA Protocols or arrhythmia?
NRMCA Protocols ships an update every 5 months, and arrhythmia every 3 weeks. Most recently, NRMCA Protocols was updated on October 3, 2026 and arrhythmia on October 8, 2026.

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