Comparison

NephroCalc™ vs Access

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

Head to head
About

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.

Highlights
  • 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
Features
Currently charting
Read full description

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).

About

Access

Access medical learning resources like videos, podcasts, and textbooks on the go. Search for specific topics, save content to collections, and personalize your dashboard. Offline viewing and specialty-specific content are available for subscribed institutional users.

Highlights
  • Search diverse medical resources
  • Save and organize content
  • Refine by content type
  • Offline viewing
  • Personalized dashboard
  • Specialty-specific content
Features
Read full description

Learn when you want, where you want, and how you want. Access is your personal medical resource that makes studying easier and more efficient. Search across a number of medical resources such as videos, podcasts, images, infographics, and textbooks, including Harrison’s Principles of Internal Medicine or Tintinalli’s Emergency Medicine, so that you can learn in a way that suits your style and time constraints. • Find and save resources - search anything from symptoms to procedures and then favorite, or save to a collection. • Refine by content type - get the type of content you want to suit your learning style or time constraints. • Search within content - find the fine details you need. • View figures and tables - view content in its entirety, or just the images and tables. • View content offline - whether it’s a case of bad wifi, or you are traveling, you can always take your content with you. • Curate new collections - save content into your own personal reference library, so you always know where your favorite resources are. • Personal dashboard - create and personalize your own dashboard, allowing you to tailor the Access experience to your needs. • Caters to your specialty - This app has content from the full Access suite of sites, which cater to the following specialties; general medicine, anesthesiology, biomedical science, cardiology, dermatology, emergency medicine, hematology medicine, neurology, advanced practice nursing, ObGyn, pediatrics, pharmacy, physiotherapy, and surgery. This app's content is only fully accessible to users that are linked to an institution that subscribes to a McGraw Hill Access product. All users are offered seven days to link their profile to their subscribing institution.

Screenshots

NephroCalc™4 screens
Access4 screens

Verdict

The call

The clearest difference is price: Access at Free against NephroCalc™'s $3.99. Access also leads on update cadence (monthly vs every 10 months) and ratings volume (134 vs 1). NephroCalc™'s advantage is rating (5.0 vs 4.2) and chart position (#176 vs unranked). On ads, in-app purchases 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

Access is free to download; NephroCalc™ costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NephroCalc™ holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Access has 134 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

NephroCalc™ ships an update every 10 months, Access monthly. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

Scorecard7 real differences · 4 level
NephroCalc™ versus Access: the parameters behind the verdict, then further details
ParameterNephroCalc™Access
Price$3.99Free — better
Rating5.0 (1 ratings) — better4.2 (134 ratings)
Positive reviews—8.3% of reviews
Number of ratings1134 — better
Update frequencyEvery 10 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#176 — better—
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better26
Further details — not scored
Size24 MB59 MB
Age rating17+17+
DeveloperScyMed, IncMcGraw-Hill

Customer experience

NephroCalc™

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Access

All ratings132 ratings
Positive80.3%
Neutral3.0%
Negative16.7%
Written reviews36 reviews
Positive8.3%
Neutral13.9%
Negative77.8%

Bugs and requests

NephroCalc™

Not enough reviews yet to summarise bugs or requests.

Access

Reported bugs

32 issues
  • Infinite login loop
  • App won't log in
  • App broken or glitched
  • Unable to access content
  • Appendix and introduction absent
Show 27 more
  • Cannot search all chapters at once
  • Cannot access last sections of chapters
  • Text-to-speech mispronounces words
  • Text-to-speech requires app to be open
  • Does not remember last read position
  • Search function unusable
  • Accounts do not sync properly
  • Books, collections, and favorites not added appropriately
  • Crashes and logs out
  • Hard to navigate within textbook
  • Flash cards won't load
  • Cannot open books
  • Search bar shows technical difficulties
  • Cannot log in after password reset
  • App crashes when highlighting content
  • Copying text crashes the app
  • Lost highlight data after update
  • Lost keyword search ability after update
  • Favorites are erased
  • Books show error message of item not available
  • Search function won't find books
  • Favorites don't sync from desktop
  • Top bar heading obstructs reading
  • Book does not appear in the whole screen
  • Cannot find books by author or ISBN
  • No robotic audio option
  • Username difficult to find

Requested features

10 requests
  • Option to search all chapters at once
  • Improve text-to-speech functionality
  • Allow text-to-speech to continue when app is in background
  • Remember last read position
  • Sync favorites across devices
Show 5 more
  • iPad optimization
  • Browse all books by subscribed module
  • Toggle option for top bar heading
  • Full screen book display
  • Implement robotic audio option

In-app purchases

None

NephroCalc™

No in-app purchases

None

Access

No in-app purchases

Questions

Is NephroCalc™ free?
NephroCalc™ costs $3.99, with no in-app purchases.
Is Access free?
Access is free to download, with no in-app purchases.
Which has better reviews, NephroCalc™ or Access?
NephroCalc™ is rated higher. NephroCalc™ averages 5.0 out of 5 from 1 ratings, while Access averages 4.2 from 134 ratings.
Do NephroCalc™ or Access have ads?
Neither NephroCalc™ nor Access shows ads.
Which is updated more often, NephroCalc™ or Access?
NephroCalc™ ships an update every 10 months, and Access monthly. Most recently, NephroCalc™ was updated on October 23, 2026 and Access on October 22, 2026.

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