Let’s imagine you came up with a mobile app idea, developed an app with delightful design, a convenient user interface, and useful features. Finally, you launched the app, but despite a powerful marketing strategy, users leave you in favor of competitors. The problem can hide in the usability of the app. To overcome the obstacles, it’s better to build into the app a mobile analytics tool, then make different scenarios of how users prefer to use the app. The next step is usability testing with real users close to ideal types. Finally, you conclude this process by making a list with critical errors and finding ways to fix them.