# Zwisch Surgery — Surgery Resident Evaluation

> Surgery Resident Evaluation (iPhone/iPad app by Covenant Data Systems, LLC.)

- Source: https://appshunter.io/ios/app/zwisch-surgery/id1320646033 (this page in markdown: same URL + `.md`)
- Developer: [Covenant Data Systems, LLC](https://appshunter.io/developer/1393847632)
- Category: Medical, Education
- Price: Free
- Age rating: 12+
- Requires: iOS 13.0 · 6 MB
- Languages: American English
- Released: 2017-12-04
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/zwisch-surgery/id1320646033/reviews.md

## What is Zwisch Surgery?

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.


## Version history (last 5 releases)

### 2.4.2 — 2021-04-06

We are now allowing Attending Physicians and Surgeons to edit their responses and evaluations of previously completed cases.

### 2.4.1 — 2021-04-04

Fixed several user interface bugs: 1) Procedure data for certain specialties now functions, 2) Trainees may now view their completed cases.

### 2.4 — 2021-03-28

The user interface is now compatible with both normal and dark mode. We have instituted autofill for passwords. We are no longer supporting milestone data or watch interface due to infrequent use. The attending surgeon can now message the trainee upon completion of their evaluation.

### 2.3.1 — 2020-12-08

Fixed problem allowing the use of international phone number formats.

### 2.3 — 2019-08-26

Fixed a bug that prevented users with an invalid token from accessing the app.

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All apps by Covenant Data Systems, LLC: https://appshunter.io/developer/1393847632

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*