Zwisch Surgery vs PsychAtlas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zwisch Surgery
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The operating room (OR) remains primarily a master/apprentice-based learning environment for surgical residents. This app puts into practice a simple model for teaching and assessing residents in the OR to guide faculty and resident interaction and to help determine a trainee's earned level of autonomy for a given procedure. It is based on an original paper published out of Northwestern University Feinberg School of Medicine and the University of Kentucky College of Medicine (Debra A. DaRosa, PhD, Joseph B. Zwischenberger, MD, Shari L. Meyerson, MD, et al. A Theory-Based Model for Teaching and Assessing Residents in the Operating Room, Journal of Surgical Education, Volume 70(1), 2012.) The resident surgeon initiates the assessment by logging the date, type of procedure, attending surgeon and hospital. (S)he is then asked to self rate their level of participation (Zwisch option) and the degree of difficulty of the procedure. This information is transmitted by SMS to the attending surgeon who then provides his or her Zwisch option, degree of difficulty, operative performance, and procedural milestone data for the same case, with no knowledge of the resident's contribution. The attending surgeon's assessment is then stored along with the resident's assessment for future analysis. The app is functional only for university programs that have adopted this assessment tool.
PsychAtlas
Master psychiatry with focused lessons, clinical reasoning, and thousands of practice questions. Explore 19 domains covering diagnosis, pharmacology, and treatment. Test your knowledge with customizable quizzes and daily challenges.
- Thousands of practice questions with explanations
- 19 psychiatry domains for rapid review
- Clinical reasoning cases
- Medication reference
- Daily challenges and customizable quizzes
- Progress tracking and statistics
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PsychAtlas is a comprehensive psychiatry learning platform built for medical students and trainees. Master psychiatry through focused lessons, clinical reasoning, and thousands of practice questions covering the major areas of psychiatric medicine. Explore 19 psychiatry domains with structured guides covering diagnosis, differential diagnosis, epidemiology, pharmacology, treatment, and high-yield clinical concepts. Test your knowledge with customizable quizzes, clinical cases, and a daily challenge designed to reinforce what you learn. Features include: • Thousands of psychiatry practice questions with explanations • 19 psychiatry domains organized for rapid review • Clinical reasoning cases based on realistic presentations • Medication reference covering commonly used psychiatric drugs • Daily challenges and customizable quizzes • Progress tracking, accuracy statistics, streaks, and quiz history • Search across topics, medications, and educational content • Bookmarks for important concepts and questions Whether you are studying psychiatry during medical school, preparing for clinical rotations, or reviewing core concepts, PsychAtlas puts a structured psychiatry curriculum in your pocket. Developed by Cameron Sabet, MS, MBA, MA Fourth-Year Medical Student, Georgetown University School of Medicine For educational purposes only. PsychAtlas does not provide medical advice, diagnosis, or treatment and is not a substitute for professional medical judgment.
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Verdict
The clearest difference is update cadence: Zwisch Surgery at every 2 weeks against PsychAtlas's every 17 months. Zwisch Surgery also leads on iOS requirement (13.0 vs 26.5). 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.
Zwisch Surgery ships an update every 2 weeks, PsychAtlas every 17 months. The most recent releases landed on October 21, 2026 and September 28, 2026 respectively.
| Parameter | Zwisch Surgery | PsychAtlas |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 weeks — better | Every 17 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 6 MB | 4 MB |
| Age rating | 12+ | 17+ |
| Developer | Covenant Data Systems, LLC | Cameron Sabet |
In-app purchases
Zwisch Surgery
No in-app purchases
PsychAtlas
No in-app purchases
Questions
Is Zwisch Surgery free?
Is PsychAtlas free?
Do Zwisch Surgery or PsychAtlas have ads?
Which is updated more often, Zwisch Surgery or PsychAtlas?
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