Preop Eval vs Anticoagulation Manager
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.
Anticoagulation Manager
This medical app assists clinicians in determining the correct type and dose of anticoagulant drugs. It provides evidence-based, accessible, and accurate information for prescribing anticoagulants to manage abnormal clotting states.
- Anticoagulant drug selection
- Laboratory testing guidance
- Evidence-based clinical information
- Management of abnormal clotting states
- Prescribing support for clinicians
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The Anticoagulation Manager is a mobile application developed through the collaborative efforts of the CDC and the Georgia Institute of Technology. Since the determination of the correct type and dose of anticoagulant drugs can be challenging, this application is a resource for clinicians to appropriately order laboratory testing and choose anticoagulant drugs for the various indications. It gives clinicians evidence-based, accessible, and accurate information when prescribing anticoagulants to prevent and/or treat abnormal clotting states.
Screenshots
Verdict
The clearest difference is rating: Preop Eval at 5.0 against Anticoagulation Manager's 2.3. Preop Eval also leads on review sentiment (67% vs 50%) and update cadence (every 6 months vs every 13 months). Anticoagulation Manager's advantage is iOS requirement (12.0 vs 16.6). On price, ratings volume, ads and in-app purchases 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 holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 67% of Preop Eval's written reviews are positive against 50% of Anticoagulation Manager's.
Preop Eval ships an update every 6 months, Anticoagulation Manager every 13 months. The most recent releases landed on September 10, 2026 and September 2, 2026 respectively.
| Parameter | Preop Eval | Anticoagulation Manager |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 2.3 (4 ratings) |
| Positive reviews | 66.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 6 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 5 MB |
| Age rating | 17+ | 17+ |
| Developer | United Health Services, Inc. | Centers For Disease Control and Prevention |
Customer experience
Preop Eval
Anticoagulation Manager
In-app purchases
Preop Eval
No in-app purchases
Anticoagulation Manager
No in-app purchases
Questions
Is Preop Eval free?
Is Anticoagulation Manager free?
Which has better reviews, Preop Eval or Anticoagulation Manager?
Do Preop Eval or Anticoagulation Manager have ads?
Which is updated more often, Preop Eval or Anticoagulation Manager?
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