Zwisch Surgery vs ETSU CPG
Price, ratings, monetisation and update history for both apps, side by side β 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.
ETSU CPG
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The CPG lists guidelines and evidence for Distal Radius Fracture (DRF) ,Β Carpal Tunnel, and Lateral Elbow Pain treatment. It covers prognosis, examination measures, and intervention (follow-up) methods. Our app provides recommendations to clinical practitioners based on the document. It allows them to input contextual information and then receive customized guidelines for each area: prognosis, examination, and intervention. The overall business goals are to improve the efficiency and accuracy of the treatment process, reducing health care costs.
Screenshots
Verdict
The clearest difference is iOS requirement: Zwisch Surgery at 13.0 against ETSU CPG's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· 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, ETSU CPG every 3 weeks. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.
| Parameter | Zwisch Surgery | ETSU CPG |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks β better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 13.0 β better | 15.1 |
| Further details β not scored | ||
| Size | 6 MB | 39 MB |
| Age rating | 12+ | 12+ |
| Developer | Covenant Data Systems, LLC | Evan Harris |
In-app purchases
Zwisch Surgery
No in-app purchases
ETSU CPG
No in-app purchases
Questions
Is Zwisch Surgery free?
Is ETSU CPG free?
Do Zwisch Surgery or ETSU CPG have ads?
Which is updated more often, Zwisch Surgery or ETSU CPG?
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