Preop Eval vs AnticoagEvaluator
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.
AnticoagEvaluator
This medical app assists healthcare professionals in making informed decisions regarding antithrombotic therapy for patients with non-valvular atrial fibrillation. It calculates patient risk factors, provides guideline-driven therapy recommendations, and helps optimize anticoagulant dosages.
- Calculate renal function and stroke/bleed risk
- Review ACC/AHA/HRS guideline therapy
- Generate individualized antithrombotic risk
- Optimize DOAC dosages
- Based on SPARC Tool
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Make well-informed decisions on antithrombotic therapy for your non-valvular AF patients with the updated AnticoagEvaluator. Use the app to: • Calculate a patient's renal function and risk of ischemic stroke, thromboembolism, and bleed • Review ACC/AHA/HRS Guideline-driven therapy guidance for stroke prevention • Generate individualized risk for antithrombotic therapy options based on individual clinical trials. • Improve accurate use of DOACs with adjusted dosage based on prescribing information, fine-tuned for renal and other patient characteristics. This app is based on SPARC Tool, developed by Peter Loewen, ACPR, Pharm.D., FCSHP, which can be viewed at www.sparctool.com
Screenshots
Verdict
The clearest difference is rating: Preop Eval at 5.0 against AnticoagEvaluator's 2.3. Preop Eval also leads on review sentiment (67% vs 30%). AnticoagEvaluator's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.6). On price, ratings volume, update cadence and ads 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 3 respectively. Written reviews point the same way: 67% of Preop Eval's written reviews are positive against 30% of AnticoagEvaluator's.
Preop Eval ships an update every 6 months, AnticoagEvaluator every 7 months. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.
| Parameter | Preop Eval | AnticoagEvaluator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 66.7% of reviews — better | 30.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 6 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 25 MB |
| Age rating | 17+ | 17+ |
| Developer | United Health Services, Inc. | American College of Cardiology |
Customer experience
Preop Eval
AnticoagEvaluator
In-app purchases
Preop Eval
No in-app purchases
AnticoagEvaluator
No in-app purchases
Questions
Is Preop Eval free?
Is AnticoagEvaluator free?
Which has better reviews, Preop Eval or AnticoagEvaluator?
Do Preop Eval or AnticoagEvaluator have ads?
Which is updated more often, Preop Eval or AnticoagEvaluator?
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