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 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

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 4.2. PHECC Field Guide App also leads on in-app purchases (none vs 3) and iOS requirement (11.0 vs 17.6). arrhythmia's advantage is update cadence (every 3 weeks vs every 19 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. 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 4.2. 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

arrhythmia ships an update every 3 weeks, PHECC Field Guide App every 19 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

Scorecard7 real differences · 4 level
arrhythmia versus PHECC Field Guide App: the parameters behind the verdict, then further details
ParameterarrhythmiaPHECC Field Guide App
PriceFreeFree
Rating4.2 (111 ratings)5.0 (1 ratings) — better
Positive reviews43.9% of reviews—
Number of ratings111 — better1
Update frequencyEvery 3 weeks — betterEvery 19 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
Best chart rank#199 — better—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.611.0 — better
Further details — not scored
Size159 MB21 MB
Age rating17+4+
DeveloperSingle Sail Software, LLCPre-hospital Emergency Care Council

Customer experience

arrhythmia

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

PHECC Field Guide App

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

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 4.2 out of 5 from 111 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 3 weeks, and PHECC Field Guide App every 19 months. Most recently, arrhythmia was updated on October 17, 2026 and PHECC Field Guide App on October 13, 2026.

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