PPP Agency vs arrhythmia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PPP Agency
This medical reference app offers quick offline access to select field treatment protocols for paramedics. It features indexed lookup, search functionality, and customizable notes for easy access to essential information.
- Quick indexed lookup
- Search titles and text
- Favorites tab
- Regularly updated content
- Customizable notes
- Offline access
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For the standard version of Paramedic Protocol Provider with over 350 available protocols, please visit http://itunes.apple.com/app/paramedic-protocol-provider/id323130614?mt=8 PPP Agency is a sponsored version of Paramedic Protocol Provider that provides quick offline access to select field treatment protocols. For a list of all currently available protocols please visit https://www.acidremap.com 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
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
Screenshots
Verdict
The clearest difference is rating: arrhythmia at 4.1 against PPP Agency's 2.6. arrhythmia also leads on update cadence (every 3 weeks vs every 5 months) and review sentiment (44% vs 29%). PPP Agency's advantage is in-app purchases (none vs 3) and iOS requirement (15.0 vs 17.6). 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
Both are free to download. arrhythmia sells 3 in-app purchases, starting at $2.99 per month. PPP Agency asks for nothing beyond the download.
arrhythmia holds the better App Store score, 4.1 against 2.6. That said, the two scores are not equally well evidenced: arrhythmia has 113 ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 29% of PPP Agency's written reviews are positive against 44% of arrhythmia's.
PPP Agency ships an update every 5 months, arrhythmia every 3 weeks. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | PPP Agency | arrhythmia |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (22 ratings) | 4.1 (113 ratings) — better |
| Positive reviews | 28.6% of reviews | 43.9% of reviews — better |
| Number of ratings | 22 | 113 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 52 MB | 159 MB |
| Age rating | 17+ | 17+ |
| Developer | Acid Remap LLC | Single Sail Software, LLC |
Customer experience
PPP Agency
arrhythmia
Bugs and requests
PPP Agency
Not enough reviews yet to summarise bugs or 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
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- 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
In-app purchases
PPP Agency
No in-app purchases
arrhythmia
- Monthly7 Days trial$2.991 Month
- Yearly7 Days trial$19.991 Year
- Unlock All Rhythms (One-time Purchase)$4.99









