I would really appreciate your feedback on my project INCH-in-cm-umrechner.de . I’m currently trying to take this tool to the next level, and I feel like something is still missing—especially in terms of user retention, usability, and overall UX/UI clarity, even though the core functionality is already fully developed. The website is a unit conversion tool focused primarily on inch-to-cm conversions and related measurement utilities. From a technical standpoint, the system works correctly, input handling is stable, and calculations are accurate. However, I believe that functional correctness alone is not enough to make a tool truly useful in today’s competitive web environment. What I’m struggling with right now is understanding what improvements would actually increase engagement, usability, and repeat usage, especially for mobile users where most traffic tends to come from.…