I found it in the apple app store with some difficulty. You have to search for lymphedema, as searching for the name or abbreviated name brings up nothing. It's the app by Mei Qiu (an alternate spelling of her last name). This article says you can download an android verion from the ALFP website, but I didn't find it there; perhaps you can contact them: http://onsopcontent.ons.org/Publications/SIGNewsletters/lym/lym24.2.html
I was unable to find it for a laptop.
This article has more details but I didn't see a link to the apps: https://www.eurekalert.org/pub_releases/2016-10/nyu-msa100316.php
You can get contact info for Mei Fu to ask her where the android and laptop apps are.
Suggestion: The author of the CURE article should have included links to the apps.