Mobile analytics SDKs are widely used in modern app development to track user behavior, measure engagement, and improve overall app performance by collecting data like events, sessions, and conversions. With popular options such as Firebase, Amplitude, Mixpanel, AppsFlyer, and others, each tool offers different strengths depending on whether the focus is product analytics, marketing attribution, or user experience insights. Which mobile analytics SDK do you think provides the best balance of accuracy, ease of use, and scalability for real-world applications, and why based on your experience or understanding?