Delivering quality mobile apps is crucial, as users now have access to an extensive range of apps and are unlikely to tolerate a poorly designed or difficult-to-use app. Conducting usability testing on mobile apps is essential to discover how usable your product is, including its ease of use, UX, and ability to satisfy user needs. To test effectively, you need to know what metrics to optimize for and keep the users in mind. Key aspects to test include user-friendliness, the flow of critical path, onboarding, and accessibility. User feedback can be gathered through proactive and reactive methods, such as surveys and user reports, and is crucial for identifying usability issues. Setting up usability tests requires early planning and a strong user feedback tool, and tools like Instabug can help integrate in-app feedback reporting, in-app surveys, and seamless integration to get the best results from usability testing mobile apps.