This app is a client used to connect to a SC PACS server. It allows you to download and view DICOM images on your device.
You can set up many different servers and chose which one the app would use to connect. If you just want to test how it works you can use the Demo page where you can search and view anonymized studies from our demo server without the need to set up a server and login.
Image series are being opened in a DICOM viewer which has different tools for image manipulation and taking measurements.