The key to designing successful surveys for mobile apps is understanding the goals and motivations of users, identifying what they need to have a better experience, and asking targeted questions that provide actionable feedback. The five core elements of a user feedback survey include where to ask, what to ask, how to ask, who to ask, and when to ask. To maximize responses and quality, surveys should be contextualized within the app itself, focusing on one topic at a time, using neutral language, and choosing formats that suit the needs of the audience. Effective targeting involves segmenting users based on their behavior or demographics and reaching out at strategic moments, such as after completing a specific task or during an emotional high. By asking the right questions at the right times, developers can gather valuable insights to improve their app's performance and user satisfaction.