ACLS Fast vs arrhythmia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ACLS Fast
This app provides rapid guidance for ACLS 2020 guidelines, helping users quickly determine appropriate therapies through a question-based system. It includes information on rhythms, arrhythmias, acute coronary and stroke syndromes, and features a two-minute timer for code management.
- Question-based therapy guidance
- Rhythms and arrhythmias management
- Acute coronary and stroke syndrome protocols
- Two-minute code timer with alarm
- Interactive multiple-choice exams
- Rapid diagnosis and treatment support
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This is the fastest utility for managing and preparing for the ACLS 2020 guidelines. Unlike other apps that present algorithm sheets, this smart utility guides you to the pertinent therapy by asking one to two questions. ACLS Fast gives you all the rhythms and arrhythmias along with the specific treatments. You also have acute coronary and stroke syndrome management. In addition, there is a two minute timer to assist you with time management during a code. Now you don't have to second guess when two minutes pass and it is time to recheck vitals and shock. Every two minutes a loud alarm activates. The timer is resettable. Need to start inotropes, but you can't remember the right ones? This app has it and it is fast! Finally, you can take an interactive exam. There are many multiple-choice questions from which you can choose. Use this to test your knowledge or sharpen your ability to take care of patients. You can use the app in the field and hospital for rapid diagnosis and treatment. You can also use it as a quick, comprehensive study tool. Either way, nothing is this fast or simple. Also, check out PALS Fast for pediatrics.
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 price: arrhythmia at Free against ACLS Fast's $3.99. arrhythmia also leads on rating (4.2 vs 2.8) and update cadence (every 3 weeks vs every 3 months). ACLS Fast's advantage is in-app purchases (none vs 3) and review sentiment (76% vs 45%). On 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
arrhythmia is free to download; ACLS Fast costs $3.99 up front. arrhythmia sells 3 in-app purchases, starting at $2.99 per month. ACLS Fast asks for nothing beyond the download.
arrhythmia holds the better App Store score, 4.2 against 2.8. That said, the two scores are not equally well evidenced: arrhythmia has 111 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 76% of ACLS Fast's written reviews are positive against 45% of arrhythmia's, so the app with the better star average is not the one people write more warmly about.
ACLS Fast ships an update every 3 months, arrhythmia every 3 weeks. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.
| Parameter | ACLS Fast | arrhythmia |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 2.8 (4 ratings) | 4.2 (111 ratings) — better |
| Positive reviews | 75.8% of reviews — better | 45.0% of reviews |
| Number of ratings | 4 | 111 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Best chart rank | — | #188 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 20 MB | 159 MB |
| Age rating | +17 | 17+ |
| Developer | Crystal Clear Solutions | Single Sail Software, LLC |
Customer experience
ACLS Fast
arrhythmia
In-app purchases
ACLS Fast
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
Questions
Is ACLS Fast free?
Is arrhythmia free?
Which has better reviews, ACLS Fast or arrhythmia?
Do ACLS Fast or arrhythmia have ads?
Which is updated more often, ACLS Fast or arrhythmia?
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