Comparison

ABG Book vs AHA ACLS

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

Head to head
About

ABG Book

This interactive book simplifies the complex topic of ACID-BASE balance through dynamic learning. It integrates graphics and equations to provide in-depth understanding and can be used as a teaching tool.

Highlights
  • Interactive ACID-BASE balance learning
  • Dynamic pH and HH equation understanding
  • Integration of graphics with equations
  • In-depth ABG graphics knowledge
  • Futility of Bicarbonate in diagnosis
  • ABG tutor for presentations
Features
Read full description

This is a Complete and Interactive Book created with the purpose of simplifying the understanding of ACID-BASE balance, which is a relatively complex topic and is been a class example of academic terrorism.  Aim of the APP Book: 1. Facilitate simultaneous learning of Acid- Base diagnosis and understanding the mechanism while playing with the App.  2. Understanding the fundamentals of the concept of pH in a dynamic format.  3. Understanding the dynamics of HH equation in a unique way. 4. Integration of Graphics and HH equation in an interactive form, helping user get in-depth knowledge and understanding of ABG Graphics.   5. Understanding the futility of Bicarbonate in Acid: Base diagnosis as Bicarbonate is a calculated parameter and is a product of CO2 and pH.  6. Teaching ABG by using this App: ABG tutor can be used for teaching Acid-Base by using smartphone, just attach the phone to the projector by a suitable adapter and you are ready for presentation!!! Happy learning. Concept and Authors: Dr Satish Deopujari 
Dr Lawrence Martin
Dr Vivek Shivhare
Dr Shruti Deopujari Dr Edward H. Karotkin Visit deopujari.com for more details About RoundGlass Blossom: RoundGlass Blossom is committed to enable every caregiver to run a smarter practice and deliver superior care to their patients. RoundGlass Blossom offers a comprehensive suite of solutions comprising of medical, educational and practice management applications designed to help caregiver at every step of medical practice to deliver best care. To know more, write to us at: rgblossom@round.glass.  

Disclaimer: This app is based on equations available publicly in Medical domain. The information contained on this app is intended for educational purposes only. It does not constitute medical advice. You should consult a physician regarding medical diagnosis or treatment.

About

AHA ACLS

This app provides clinicians with a digital tool to assist in running cardiac arrest codes and delivering advanced cardiac life support (ACLS) at the bedside. It features the latest AHA recommendations and includes intuitive access to algorithms, drug dosing, and timers for efficient patient care.

Highlights
  • 4 ACLS algorithms (cardiac arrest, tachycardia, bradycardia, post-arrest)
  • Latest 2025 AHA ACLS content
  • Drug therapy and dosing
  • Easy-to-read timers
  • CPR and epinephrine logging
  • Rapid transition to post-arrest care
Features
Currently charting
Read full description

The AHA ACLS app is the American Heart Association's (AHA) officially endorsed digital health solution to assist clinicians in running codes and delivering bedside ACLS care with actual patients. The app was developed by Harvard-trained physicians, in collaboration with the AHA, to help fellow physicians, nurses, physician assistants, nurse practitioners, and EMTs deliver the highest level of advanced cardiac life support (ACLS) at the point-of-care. It began as a project to assist clinicians within Massachusetts General Hospital (MGH), a Harvard Medical School teaching hospital—and then expanded to have a global scope after significant positive impact was demonstrated. Importantly, real-time feedback from our clinician users continuously drives improvements in app design, features, and function so that you will have the best experience providing life-saving care at the bedside. The AHA ACLS app is the only one to have all content vetted by both the AHA science team and practicing Harvard-affiliated physicians. It also features the latest 2025 release of AHA recommendations for ACLS. We owe it to our patients to use the best digital health tools to give them the highest chance of surviving acute life-threatening cardiac illnesses. To this end, we have developed a low cost, intuitive, and rigorously vetted mobile app to assist clinicians— including in all stages of training—and enhance ACLS care at the bedside. Features: - Intuitive design to rapidly access 4 ACLS algorithms (i.e. cardiac arrest, tachycardia with pulse, bradycardia with pulse, and post cardiac arrest care) - Includes all recently released 2025 ACLS content including drug therapy and dosing, reversible causes, etc. - Easy-to-read timers and ability to log rounds of CPR, epinephrine, and defibrillations - Button within cardiac arrest algorithm that allows for rapid transition to post cardiac arrest care pathway once patient achieves ROSC - All content rigorously vetted by AHA science team and practicing Harvard-affiliated physicians We continue to iterate based on real-time clinician feedback, so that you will have the best experience providing life-saving care at the bedside. AHA ACLS offers an auto-renewing annual subscription at $3.99/year with a 3-day free trial. You will have unlimited access to all content while you maintain an active subscription. Payment will be charged to the credit card connected to your Apple ID Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of the free trial period, if offered, will be forfeited when you purchase a subscription. You can read more about our terms and conditions in the app.

Screenshots

ABG Book4 screens
AHA ACLS4 screens

Verdict

The call

ABG Book and AHA ACLS both sit at 5.0 stars, but that hides the real split: 100% of ABG Book's written reviews are positive against 26% of AHA ACLS's. ABG Book also leads on in-app purchases (none vs 1) and update cadence (every 5 days vs every 2 months). AHA ACLS's advantage is ratings volume (277 vs 1) and chart position (#50 vs unranked). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AHA ACLS sells 1 in-app purchase, starting at $3.99 per year. ABG Book asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ABG Book against 4.9 for AHA ACLS. That said, the two scores are not equally well evidenced: AHA ACLS has 277 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 100% of ABG Book's written reviews are positive against 26% of AHA ACLS's.

UpkeepUpdate frequency

ABG Book ships an update every 5 days, AHA ACLS every 2 months. The most recent releases landed on August 30, 2026 and September 24, 2026 respectively.

Scorecard7 real differences · 4 level
ABG Book versus AHA ACLS: the parameters behind the verdict, then further details
ParameterABG BookAHA ACLS
PriceFreeFree
Rating5.0 (1 ratings) — better4.9 (277 ratings)
Positive reviews100.0% of reviews — better26.3% of reviews
Number of ratings1277 — better
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
Best chart rank—#50 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better15.1
Further details — not scored
Size41 MB48 MB
Age rating4+17+
DeveloperSatish DeopujariMassachusetts General Hospital

Customer experience

ABG Book

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

AHA ACLS

All ratings277 ratings
Positive99.3%
Neutral0.4%
Negative0.4%
Written reviews80 reviews
Positive26.3%
Neutral3.8%
Negative70.0%

Bugs and requests

ABG Book

Not enough reviews yet to summarise bugs or requests.

AHA ACLS

Reported bugs

3 issues
  • App fails to load information despite subscription payment
  • Users locked out of app mid-code
  • Unexpected app crashes during critical moments

Requested features

10 requests
  • Multiple log storage with dates
  • More detailed code logging with event documentation (IO access, medications, rhythms)
  • End code button and pause compressions feature
  • Real-time log tracking for back-charting
  • LVAD algorithm inclusion
Show 5 more
  • Additional medication counters (bicarbonate, calcium)
  • One-time purchase option instead of subscription
  • Free basic version with premium features behind paywall
  • Voluntary donation model instead of mandatory subscription
  • Actual time reflection in logs for accurate timekeeping

In-app purchases

None

ABG Book

No in-app purchases

1 purchases

AHA ACLS

Subscriptions1
  • ACLS Pro3 Days trial$3.991 Year

Questions

Is ABG Book free?
ABG Book is free to download, with no in-app purchases.
Is AHA ACLS free?
AHA ACLS is free to download, with in-app purchases available.
Which has better reviews, ABG Book or AHA ACLS?
ABG Book is rated higher. ABG Book averages 5.0 out of 5 from 1 ratings, while AHA ACLS averages 4.9 from 277 ratings.
Do ABG Book or AHA ACLS have ads?
Neither ABG Book nor AHA ACLS shows ads.
Which is updated more often, ABG Book or AHA ACLS?
ABG Book ships an update every 5 days, and AHA ACLS every 2 months. Most recently, ABG Book was updated on August 30, 2026 and AHA ACLS on September 24, 2026.

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