It's essential for developers to listen to user feedback and watch their behavior in the app to spot problems and solve them quickly. This can be achieved by using Intercom, a tool that helps simplify the development process for web projects. TrackDuck, a feedback gathering tool, uses Intercom to connect with its customers and has learned valuable lessons from user research on interface design issues such as overly complicated registration forms, onboarding for new users, and supporting mobile devices. By making changes based on this research, TrackDuck was able to increase customer engagement, improve the user experience, and reduce bounce rates. The key takeaways are to try to conceal rarely used but still necessary features, get rid of unused elements, and use conventional control elements instead of non-standard ones.