A small startup has approached me with an idea for a minimalistic and modern to-do app. However, the client wants the app to stand out from competitors with one unique feature. I researched existing to-do apps, identifying a realistic and feasible feature that adds value, and prioritize ideas using WSJF framework before deciding on the final addition. After conducting research between three highly rated to-do task apps, I found that the need for a sort feature was highly needed based on user reviews across all three task apps. After sketching a lo-fi and first high-fi iteration, I decided to test some random users that keep up to date and try to stay on track with their to-do lists, daily tasks, weekly tasks or even monthly tasks. After creating Lo-Fi and Hi-Fi iterations and completing usability testing I was able to report my success and deliver an amazing product to the client.