The initial build of the app took about 6 weeks, which incorporated co-design sessions with the YouK team each week. During these sessions we followed an agile workflow to present the progress to the team and get their feedback. The project owners in our team then adapted their workflow based on feedback from the YouK Team.
After the MVP was delivered, the YouK team conducted a round of user testing, putting their product in the hands of real consumers to get feedback. This was a great move, since it can be hard to spot potential tweaks and changes when you're very close to the project. Sure enough, some great feedback was gathered. Our team then helped YouK with the strategy of the next phases of development, working in small iterations of improvements leading up to the public launch.