We started off by wireframing the application. Next, we moved onto moderated user-testing on prototypes we built in-house. Armed with user feedback, we tweaked the UX of the application, and applied a colourful UI. DiskiMillions is a progressive web application, meaning it uses technology that allows it to be used on mobile devices in the same manner that native apps are, with all of the power and access that the web brings. Using an agile approach, we are continually improving, and expanding the app.