Using the existing screen for the ‘Call’ tab in the Hiya iOS app and mockup a proposal for a more visually appealing design using the existing content and features.
My main external reference for the information was Hiya's current iOS app design. Based on the user research they had done, most people were confused about how to look up numbers from the dial pad screen.
During this phase I sketched out concepts on paper, getting through a lo of ideas fairly quickly...what worked and what wouldn't work, while taking account of the user data I received above. At this point I was only thinking about structure and the best way to display functionality.
After my initial sketching phase, I picked the strongest screens I'd drawn and using Sketch turned them into lo-fi wireframes. Again, the point of this was mostly just to block areas of information and hierarchy.
Now that I had my basic wireframes created, I moved on to creating a high-fidelity prototype. At this point I picked a color palette, photos, and fleshed out the entirety of my design idea using my wireframes as a guide.
I also created an alternate version of the dial screen with the user's home or cell phone listed next to their name in the event that the contact has two numbers (home and cell).
The client was happy with initial design. They suggested some usability changes/clarifications after the initial design was presented. Overall they liked the visual design and direction, there were just a few tweaks to be made to account for different functionality.