ABG Acid vs Pocket ICU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ABG Acid
This app guides clinicians through analyzing ABGs and electrolytes to identify acid-base disorders and diagnostic ideas for ill patients. It teaches a stepwise thinking process and provides differential diagnoses with explanations, aiding patient care and clinician learning.
- Stepwise ABG and electrolyte analysis
- Identifies acid-base disorders
- Provides diagnostic ideas
- Teaches critical thinking process
- Includes differential diagnoses mnemonics
- Calculates predicted pCO2 and corrected bicarbonate
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ABG Acid-Base eval walks a clinician through a stepwise approach to analyse ABG's and electrolytes in order to arrive at acid-base disorders and diagnostic ideas about ill patients. It is based mainly upon a worksheet developed by Dr. Erik Rupard from the medical literature. This tool not only yields answers, but just as importantly teaches the stepwise thinking process and the necessary concepts along the way. A clinician or learner will wind up with good information that assists patient care and should wind up a little smarter and more able to do it with less assistance the next time. It is a great support for those of us clinicians who use these tests only occasionally and don't have it memorized. The differential diagnoses include the classic mnemonics like MUDPILERS, CHAMPS, CLEVER PD, and HARDUPS, with explanations and examples. The app addresses such common questions as: * What are common causes of metabolic acidosis? respiratory alkalosis? * How do I calculate predicted pCO2? corrected bicarbonate? * What is the primary acid-base disorder? * Are additional acid-base disorders present, and if so, what are they? This app is written and intended for practicing clinicians like internists, family physicians, ER docs, cardiologists, pulmonologists, intensivists, and hospitalists; for resident physician trainees; for medical students; and of course for other clinician colleagues like NP's and PA's. As an educator and clinician, I am interested in feedback and I would be grateful for guidance on improving the tool. Notes of importance: - many thresholds and cutoffs are arbitrary and debatable, so you will have to use judgment to interpret which disorders are present and to what extent when suggested by the app - the app facilitates you to evaluate the data. If you make a mistake, the app will not argue with you. It will, at the end, offer to compare your work to the disorders that the app finds using the same algorithm - patients are more than the sums of their numbers and data, and they are often unique individuals. Use this information as a starting point in the evaluation of your patient and always do your own thinking!
Pocket ICU
This app offers concise critical care guidance written by attending physicians. It covers diagnosis, treatment, and management across various subspecialties, including detailed images and decision algorithms. Quickly find information, bookmark entries, and take notes for efficient ICU rounds and consultations.
- Concise guidance by attending physicians
- Diagnosis, treatment, and management details
- Subspecialty coverage
- Detailed images and algorithms
- Statistics and EBM overview
- Pharmacological data and formulas
- Full text search and bookmarking
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New topics address bioweapons, disaster preparedness and critical care challenges of an air-transmissible, pandemic-causing pathogens like COVID-19. POCKET ICU FEATURES • Concise guidance written by attending physicians for everyone in critical care • Entries with diagnosis, treatment, and management details • Coverage of subspecialty areas including pediatric, neuro, cardiac, transplant, burn, and more • Detailed images, figures, and decision support algorithms • Overview of Statistics and Evidence-Based Medicine (EBM) • Helpful appendices provide pharmacological data, respiratory formulas, and cardiopulmonary relationships • Advanced Full Text Search helps find topics quickly • “Favorites” for bookmarking important entries • Highlighting and note-taking MORE ABOUT POCKET ICU With content from the highly regarded Pocket Notebook series, Pocket ICU provides users with an essential tool for quickly locating information from every subspecialty area of critical care. Entries have been written by attending physicians and are presented in brief but broad format so anyone in an ICU setting can quickly find answers and save time. This powerful resource can be downloaded to your smartphone and tablet and is great for preparing for rounds or consulting expert recommendations while on the ICU floor. Editors: Gyorgy Frendl, MD, PhD; Avery Tung, MD Publisher: Wolters Kluwer Powered by: Unbound Medicine
Screenshots
Verdict
The clearest difference is in-app purchases: ABG Acid at none against Pocket ICU's 3. ABG Acid also leads on iOS requirement (13.0 vs 15.0). Pocket ICU's advantage is ratings volume (317 vs 7) and device support (4 vs 2). On price, rating, review sentiment and update cadence 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. Pocket ICU sells 2 one-off in-app purchases. ABG Acid asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for ABG Acid against 4.6 for Pocket ICU. That said, the two scores are not equally well evidenced: Pocket ICU has 317 ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 63% of ABG Acid's written reviews are positive against 64% of Pocket ICU's.
ABG Acid ships an update every 5 months, Pocket ICU every 9 months. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.
| Parameter | ABG Acid | Pocket ICU |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (7 ratings) | 4.6 (317 ratings) — better |
| Positive reviews | 63.0% of reviews | 64.3% of reviews — better |
| Number of ratings | 7 | 317 — better |
| Update frequency | Every 5 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 9 MB |
| Age rating | 17+ | 17+ |
| Developer | Joshua D. steinberg | Unbound Medicine, Inc. |
Customer experience
ABG Acid
Pocket ICU
Bugs and requests
ABG Acid
Not enough reviews yet to summarise bugs or requests.
Pocket ICU
Reported bugs
2 issues- No information loads after purchase
- Issues with download/access
In-app purchases
ABG Acid
No in-app purchases
Pocket ICU
- Pocket ICU2 variants$69.99
- Pocket ICU 2023$69.99
Questions
Is ABG Acid free?
Is Pocket ICU free?
Which has better reviews, ABG Acid or Pocket ICU?
Do ABG Acid or Pocket ICU have ads?
Which is updated more often, ABG Acid or Pocket ICU?
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