arrhythmia vs ROCC EMS Guidelines
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- EKG interpretation practice
- Lead II simulation
- Study Mode with rhythm selection
- Game Mode for random rhythm identification
- Customizable rhythm sets
- Realistic rhythm variations
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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
ROCC EMS Guidelines
Access essential medical protocols and supporting documents offline. Quickly search and find information with indexed lookup and customizable notes. Stay updated with regular content revisions.
- Offline access to protocols
- Quick indexed lookup
- Search titles and text
- Favorites tab
- Customizable notes
- Regular updates
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ROCC EMS Guidelines provides quick offline access to the ROCC EMS guidelines and supporting materials. Features include: •Quick indexed lookup of content in a matter of seconds •Search titles and text •Favorites tab for quick access of what's important to you •Updated regularly, ensuring content is up-to-date •Customizable notes for each individual entry •Always with you as long as you have your device and never fades or tears
Screenshots
Verdict
The clearest difference is in-app purchases: ROCC EMS Guidelines at none against arrhythmia's 3. ROCC EMS Guidelines also leads on iOS requirement (15.0 vs 17.6). arrhythmia's advantage is update cadence (every 3 weeks vs every 4 months) and ratings volume (111 vs 6). On price, rating, 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
Both are free to download. arrhythmia sells 3 in-app purchases, starting at $2.99 per month. ROCC EMS Guidelines asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.2 for arrhythmia against 4.3 for ROCC EMS Guidelines. That said, the two scores are not equally well evidenced: arrhythmia has 111 ratings behind it against 6, so its average is the more settled of the two.
arrhythmia ships an update every 3 weeks, ROCC EMS Guidelines every 4 months. The most recent releases landed on September 21, 2026 and July 31, 2026 respectively.
| Parameter | arrhythmia | ROCC EMS Guidelines |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (111 ratings) | 4.3 (6 ratings) — better |
| Positive reviews | 45.0% of reviews | — |
| Number of ratings | 111 — better | 6 |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Best chart rank | #188 — better | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 159 MB | 54 MB |
| Age rating | 17+ | 17+ |
| Developer | Single Sail Software, LLC | Acid Remap LLC |
Customer experience
arrhythmia
ROCC EMS Guidelines
In-app purchases
arrhythmia
- Monthly7 Days trial$2.991 Month
- Yearly7 Days trial$19.991 Year
- Unlock All Rhythms (One-time Purchase)$4.99
ROCC EMS Guidelines
No in-app purchases
Questions
Is arrhythmia free?
Is ROCC EMS Guidelines free?
Which has better reviews, arrhythmia or ROCC EMS Guidelines?
Do arrhythmia or ROCC EMS Guidelines have ads?
Which is updated more often, arrhythmia or ROCC EMS Guidelines?
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