Preop Eval vs Bishop Scores
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.
Bishop Scores
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The Bishop Scores app presents three different scoring schemes which help a clinician decide whether proposed induction of labor is likely to be successful and consider whether cervical ripening is warranted. The three schemes are the classic original Bishop Score from 1964, the Bishop Score with Modifiers from Hughey in 1976, and the recent statistically rigorous Simplified Bishop Score of Laughon in 2011. Discussion, explanations, and references are included. This app is written and intended for practicing clinicians like obstetricians, midwives, and family physicians as well as for resident physician and medical student trainees. 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: Preop Eval at every 6 months against Bishop Scores's every 33 months. Bishop Scores's advantage is iOS requirement (13.0 vs 16.6). On price, 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
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, Bishop Scores every 33 months. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.
| Parameter | Preop Eval | Bishop Scores |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months — better | Every 33 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 1 MB |
| Age rating | 17+ | 17+ |
| Developer | United Health Services, Inc. | Joshua D. steinberg |
In-app purchases
Preop Eval
No in-app purchases
Bishop Scores
No in-app purchases
Questions
Is Preop Eval free?
Is Bishop Scores free?
Do Preop Eval or Bishop Scores have ads?
Which is updated more often, Preop Eval or Bishop Scores?
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