Comparison

arrhythmia vs PHECC Field Guide App

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

Head to head
About

arrhythmia

Practice reading and identifying various cardiac rhythms in lead II. Features study and game modes with dynamic rhythm generation for realistic simulation. Access to the complete set of rhythms requires a subscription.

Highlights
  • Practice reading EKGs in lead II
  • Study Mode for rhythm comparison
  • Game Mode for rhythm identification challenges
  • Dynamic rhythm generation
  • Customizable rhythm selection
  • Subscription for full content access
Features
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 pick up 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 choose which rhythms to include in the game. Access to the complete set of rhythms and topics 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

About

PHECC Field Guide App

This medical reference app provides quick access to medication calculations and clinical guidelines for practitioners. It features an age-per-page medication listing, linked CPGs, and pregnancy notes for medications. Designed for field use, it aids in infrequent clinical encounters.

Highlights
  • Medication dose calculator
  • Age-per-page medication listing
  • Linked Clinical Practice Guidelines
  • Medications in Pregnancy notes
  • Update notifications
  • Future CPG switching
Features
Read full description

This Field Guide is not a substitute for the published Clinical Practice Guidelines (CPGs). It is a quick reference to help Practitioners in the field particularly with medication calculations and infrequent clinical encounters. It also gives users: • Linked CPGs for each practitioner level. • All medications in the 2017 CPGs • Dose calculator for medications • Age-Per-Page medications listing • Update notifications • Future proofing to allow switching from current to future CPGs • Medications in Pregnancy notes added to medication information This Field Guide does not authorise skills or medication administration. Practitioners should only practice within their scope of practice and in accordance with their level on the PHECC Register.

Screenshots

arrhythmia4 screens
PHECC Field Guide App4 screens

Verdict

The call

The clearest difference is rating: PHECC Field Guide App at 5.0 against arrhythmia's 4.1. PHECC Field Guide App also leads on in-app purchases (none vs 3) and iOS requirement (15.0 vs 26.6). arrhythmia's advantage is update cadence (every 4 weeks vs every 38 months) and ratings volume (113 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. PHECC Field Guide App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PHECC Field Guide App holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: arrhythmia has 113 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

arrhythmia ships an update every 4 weeks, PHECC Field Guide App every 38 months. The most recent releases landed on November 13, 2026 and November 7, 2026 respectively.

Scorecard6 real differences · 4 level
arrhythmia versus PHECC Field Guide App: the parameters behind the verdict, then further details
ParameterarrhythmiaPHECC Field Guide App
PriceFreeFree
Rating4.1 (113 ratings)5.0 (1 ratings) — better
Positive reviews43.9% of reviews—
Number of ratings113 — better1
Update frequencyEvery 4 weeks — betterEvery 38 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS26.615.0 — better
Further details — not scored
Size22 MB17 MB
Age rating17+17+
DeveloperSingle Sail Software, LLCPre-Hospital Emergency Care Council

Customer experience

arrhythmia

All ratings113 ratings
Positive78.8%
Neutral5.3%
Negative15.9%
Written reviews41 reviews
Positive43.9%
Neutral7.3%
Negative48.8%

PHECC Field Guide App

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

Bugs and requests

arrhythmia

Reported bugs

2 issues
  • App no longer works after iOS update
  • App does not work on Apple Watch

Requested features

11 requests
  • Add more common and important rhythms (torsades, WPW, STEMI, accelerated/tachycardic idioventricular, WAP, MAT)
  • Option to read as a 12-lead instead of a single rhythm line
  • Add variations to rhythms
  • Add Left Bundle Branch Block
  • Add a 12-lead option
Show 6 more
  • Add more examples for each rhythm
  • Add a list view option for rhythms
  • Add an explanation/rationale for correct/incorrect answers
  • Add an animation showing what is happening in the heart when an answer is wrong
  • Add tutorial or information on how to use the app
  • Add 'Non-Conducted' PACs and similar rhythms

PHECC Field Guide App

Not enough reviews yet to summarise bugs or requests.

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
None

PHECC Field Guide App

No in-app purchases

Questions

Is arrhythmia free?
arrhythmia is free to download, with in-app purchases available.
Is PHECC Field Guide App free?
PHECC Field Guide App is free to download, with no in-app purchases.
Which has better reviews, arrhythmia or PHECC Field Guide App?
PHECC Field Guide App is rated higher. arrhythmia averages 4.1 out of 5 from 113 ratings, while PHECC Field Guide App averages 5.0 from 1 ratings.
Do arrhythmia or PHECC Field Guide App have ads?
Neither arrhythmia nor PHECC Field Guide App shows ads.
Which is updated more often, arrhythmia or PHECC Field Guide App?
arrhythmia ships an update every 4 weeks, and PHECC Field Guide App every 38 months. Most recently, arrhythmia was updated on November 13, 2026 and PHECC Field Guide App on November 7, 2026.

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