The Viedoc 4.33 release adds support for a Visual Analog Scale (VAS) in ViedocMe, enabling subjects to use the VAS scale to indicate and submit the intensity of perceived pain or disease symptoms. ViedocMe supports a 10 cm VAS on iPad Mini version 2-4 devices, and logs the device used by the subject when answering.
"Data capturing has been made easy because of viedoc, it is incredibly robust and easy to navigate"