Apps by Regents of the University of Minnesota
iTorsion app icon

Medical

iTorsion

Regents of the University of Minnesota

Free download 5.00 · 1 storefront · 6 ratings In-app purchases unconfirmed
Open on Apple

About this app

iTorsion seeks to make the diagnosis of ocular torsion a simpler and easier process for both doctors and their patients. While traditional diagnostic methods require using special equipment (e.g., Double Maddox Rod) that often lacks precision, iTorsion only requires a smartphone and red/green glasses leading to much greater precision. This application is intended for use by doctors, and not for self-diagnosis by patients. Usage of the application will require standard red-green glasses to filter out colors from each eye. The specific color values can be tailored in the app to fit the specific requirements for the display and the glasses. The smartphone should be held on a level surface as the patient interacts with it. The patient should see predominantly one of the lines out of each eye, and will be asked to make the lines parallel with each other, as well as to the ground. After finishing the test, a screen will indicate the degree of extorsion and intorsion for each of the patient’s eyes.

Latest release

What’s New

Version 1.01 Jul 2, 2018

This update from Apple will improve the functionality of this app. No new features are included. Added U of M logo to start page.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
6 ratings
6 Aug 16, 2026 · 6 ratings Aug 16, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 16, 2026 · Free Aug 16, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 16, 2026 · 9:25 PM Free

Screenshots

iTorsion iPhone screenshotiTorsion iPhone screenshotiTorsion iPhone screenshot iTorsion iPad screenshotiTorsion iPad screenshotiTorsion iPad screenshot