Preop Eval vs Pneumonia Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Preop Eval
This app provides guidance for evaluating and preparing adult patients for non-cardiac surgery. It includes algorithms and resources on medication management, cardiac event timing, and preoperative testing, serving as both a reference and a teaching tool for medical professionals.
- Cardiac evaluation algorithm
- Medication guidance (starting/stopping)
- Surgery timing after cardiac events
- Preoperative testing recommendations
- Review for students and residents
- Perioperative insulin management
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Preop Eval organizes and presents much of the guidance that one needs in order to evaluate and prepare adult patients for non-cardiac surgery. It is based upon the guidelines on this topic from the American College of Cardiology, the European Society of Anaesthesiology, the American Society of Anesthesiologists, the Institute for Clinical Systems Improvement, the American College of Chest Physicians, and more (full references in the app). The app contains 1 algorithm and 3 resources: the cardiac evaluation algorithm, guidance on starting and stopping key medications in the perioperative period, guidance on timing of surgery after cardiac events, and guidance on preoperative testing. It also contains a review of preoperative evaluation mainly for students and residents. The app addresses such common questions as: - who needs bloodwork before surgery? - who needs an EKG or a CXR? - how do I handle patients on warfarin, clopidogrel, and DOAC's? - which patients need adjustment of perioperative insulin and diabetic meds, and how? - which active cardiac conditions preclude surgery? - how long after MI or stent should a patient wait before surgery? - are there adjustments to make on psych meds, rheumatologic meds, ACE's and ARB's? This app is written and intended for practicing physicians like internists, family physicians, and hospitalists; for resident physician trainees; and for medical students. In addition to being a reference, the algorithm is written to be a teaching tool by not just delivering an answer, but instead walking a physician through the evaluation process so that one learns that process along the way. As an educator and clinician, I am interested in feedback and I would be grateful for guidance on improving the tool.
Pneumonia Guide
This app provides organized guidance on managing community-acquired and hospital-acquired pneumonia based on established clinical guidelines. It answers common questions for healthcare professionals regarding patient hospitalization, antibiotic selection, treatment duration, and ICU admission criteria.
- Organized clinical guidelines
- Management of CAP and HAP
- Antibiotic selection advice
- Hospitalization criteria
- ICU admission guidance
- Pediatric pneumonia treatment
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Pneumonia Guide distills and organizes the guidance found in the 2019, 2016, 2007, and 2005 American Thoracic Society & Infectious Disease Society of America guidelines on management of Community Acquired Pneumonia and Hospital Acquired Pneumonia and the 2011 IDSA Pediatric Community Acquired Pneumonia guideline. The app addresses such common questions as: * what criteria are useful in deciding which community acquired pneumonia patients should be hospitalized? * what are those big-gun antibiotics for adult hospital acquired pneumonia, and what are the alternatives for those with medication allergies? * how long should antibiotics be continued? * exactly which pneumonia cases are considered to be hospital acquired? * which community acquired pneumonia patients require coverage for resistant organisms? * which hospitalized patients should be in the ICU? * which antibiotics are appropriate initial therapy for children with pneumonia? This app is written and intended for practicing clinicians like family physicians, internists, pediatricians, ER docs, and hospitalists; for resident physician trainees; and for medical students. As an educator and clinician, I am interested in feedback and I would be grateful for guidance on improving the tool.
Screenshots
Verdict
The clearest difference is update cadence: Pneumonia Guide at every 2 months against Preop Eval's every 6 months. Pneumonia Guide also leads on review sentiment (80% vs 67%) and iOS requirement (13.0 vs 16.6). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Preop Eval ships an update every 6 months, Pneumonia Guide every 2 months. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.
| Parameter | Preop Eval | Pneumonia Guide |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews | 80.0% of reviews — better |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 4 MB |
| Age rating | 17+ | 17+ |
| Developer | United Health Services, Inc. | Joshua D. steinberg |
Customer experience
Preop Eval
Pneumonia Guide
In-app purchases
Preop Eval
No in-app purchases
Pneumonia Guide
No in-app purchases
Questions
Is Preop Eval free?
Is Pneumonia Guide free?
Do Preop Eval or Pneumonia Guide have ads?
Which is updated more often, Preop Eval or Pneumonia Guide?
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