NephroCalc™ vs AHA ACLS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NephroCalc™
This medical calculator app provides over 100 essential formulas and equations for assessing patients with kidney disease and acid-base disorders. It features innovative Master panels for combined calculations and a physician-friendly interface for efficient patient data management.
- Over 100 renal and acid-base equations
- Innovative MultiCalx™ Master panels
- Customizable mCalx™ DARK calculator
- Physician-friendly intuitive interface
- Automatic unit conversion
- Color-coded normal-abnormal outputs
- Fully referenced clinical data
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The NephroCalc™ App includes most formulas and equations used in the daily assessments of patients with kidney disease. It incorporates more than 100 equations and innovative MultiCalx™ Master panels for combined calculations, assuring convenience and accuracy. Introducing the mCalx™ DARK: the unique and most innovative custom Master Medical Calculator for patient-specific computations. (You add equations & scores ad lib to the same panel!). mCalx™: 1 panel, 100+ equations/scores, TRILLIONS of combinations. NephroCalc™ facilitates the organization and processing of Patient's data. It is a physician-friendly™ app, intuitive and very easy to use. Unique reference, productivity and decision support tool. Proven and reliable data processing, for physicians, residents, med students, PAs and NPs... Developed by Board-certified physicians. **See also MediCalc® ai, Medical Calculator System™, >500 algorithms. -------------------------------------------- NephroCalc™ CONTENTS: mCalx™ Master Calculator Renal Calc™ Master Diabetic Ketoacidosis Master Renal Failure Diff. Diagnosis Master Anion Gap Master Osmolality Master GFR Master Glomerular Filtration Rate (Cockcroft) Creatinine, calculated (Cockcroft) (reverse) Glomerular Filtration Rate (MDRD-4, MDRD-6, CKD-EPI) GFR EPI creatinine, GFR EPI cystatin C, GFR EPI cr-cys CKD Master Chronic Kidney Disease Classification Albumin:Creatinine Ratio Protein:Creatinine Ratio Anion Gap (Serum) Fractional Excretion of Na+ Fractional Excretion of Urea TransTubular Potassium Gradient Body Mass Index Overweight & Obesity Classification Renal Failure (Diagnostic Indices) Target Creatinine for GFR Creatinine Clearance Anion Gap (Serum) Delta Delta Anion Gap (Urinary) Bicarbonate Deficit Chloride Deficit Henderson - Hasselbalch Equation Acid base Equation Metabolic Acidosis "Winter's formula" Metabolic Alkalosis Respiratory Acidosis, acute & chronic Respiratory Alkalosis, acute & chronic Required Sodium Sodium Correction by serum glucose Potassium / pH Correction Body Water Master Osmolar Gap Osmolality, calculated Blood Alcohol Level Fractional Excretions (K+, Mg, HCO3, PO4) Renal Failure Index Basal Energy Expenditure Conversion and many more... -------------------------------------------- The NephroCalc™ FEATURES: (the best and proven clinical data processing) * arithmetical processing * automatic unit conversion * multiple-unit entries * color-coded normal-abnormal outputs * normal values (ranges & limits) * automatic range-checks (limits) * intuitive user interface * easy navigation and info access * Search bar with filters * smart decimal rounding * Système International notation * tables of parameters * mobile & online * expanded equation views * fully referenced * highly organized and standardized -------------------------------------------- NephroCalc™ is part of ScyMed® MediCalc®, the first and most comprehensive Medical Calculator System™ in the world, online for more than 25 years... NephroCalc™ is also available in spanish as NefroCalc™. Other Medical Apps developed by ScyMed include MediCalc®, LiverCalc™, EKG-card™, eH&P™, Synt™, etc. (mobile, cloud, EMR).
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.
- 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
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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
Verdict
The clearest difference is price: AHA ACLS at Free against NephroCalc™'s $3.99. AHA ACLS also leads on update cadence (every 2 months vs every 10 months) and ratings volume (277 vs 1). NephroCalc™'s advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.1). On 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
AHA ACLS is free to download; NephroCalc™ costs $3.99 up front. AHA ACLS sells 1 in-app purchase, starting at $3.99 per year. NephroCalc™ asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for NephroCalc™ 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.
NephroCalc™ ships an update every 10 months, AHA ACLS every 2 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.
| Parameter | NephroCalc™ | AHA ACLS |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 4.9 (277 ratings) |
| Positive reviews | — | 26.3% of reviews |
| Number of ratings | 1 | 277 — better |
| Update frequency | Every 10 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid — better | Subscription |
| Best chart rank | — | #36 — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 24 MB | 48 MB |
| Age rating | 17+ | 17+ |
| Developer | ScyMed, Inc | Massachusetts General Hospital |
Customer experience
NephroCalc™
AHA ACLS
Bugs and requests
NephroCalc™
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
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- 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
NephroCalc™
No in-app purchases
AHA ACLS
- ACLS Pro3 Days trial$3.991 Year









