[paulrandall]

I’m currently in the early stages of designing a mobile app and found this article incredibly helpful as a refresher on prototyping—especially the breakdown between low-fidelity and high-fidelity approaches. Based on what I learned, I’m leaning toward starting with a low-fi prototype to test basic functionality and user flow. For someone working on a similar type of project, how do you decide when it’s time to move from a low-fi to a high-fi prototype, and what signs indicate that you're ready to invest more in polish and detail?